[pve-devel] Fwd: qemu endless live migration with XBZRLE, need advice

[Alexandre DERUMIER]

some news, 

I'll try to do some tests this week.

----- Mail original -----

De: "Aidan Shribman" <aidan.shribman at sap.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com>, "Orit Wasserman" <owasserm at redhat.com> 
Cc: "Eric Blake" <eblake at redhat.com>, "Benoit Hudzia" <benoit.hudzia at sap.com>, "Petter Svard" <petters at cs.umu.se> 
Envoyé: Jeudi 6 Septembre 2012 08:07:39 
Objet: RE: qemu endless live migration with XBZRLE,need advice 

Hi Alexandre , 

One of the following issues: 
(1) Either cache size is too small (try setting it to at least 10% of guest size). 
(2) Or LRU cache method does not suite the workload (in this case setting cache size to 100% guest size). 
(3) Or the host is CPU over committed causing XBZRLE to compete with workload. 

Regards, 
Aidan 

-- 
Aidan Shribman | SAP Research Israel | T +972 9 7775294 (1294) | M +972 54 3388085 | F +972 9 7779401 


> -----Original Message----- 
> From: Alexandre DERUMIER [mailto:aderumier at odiso.com] 
> Sent: Tuesday, September 04, 2012 11:53 AM 
> To: Orit Wasserman 
> Cc: Eric Blake; Hudzia, Benoit; Petter Svard; Shribman, Aidan 
> Subject: qemu endless live migration with XBZRLE,need advice 
> 
> Hello, 
> 
> Sorry to write you directly, but I didn't have response from qemu 
> mailing list. 
> 
> 
> Hi, 
> I'm trying to implement xbzrle live migration (qemu 1.2rc-3), 
> 
> But i'm having endless migration with high memory changes in guest. 
> workload: simply playing a youtube video in the guest. 
> 
> At the end of the migration, the remaining memory to transfert goes up 
> and down and I see a lot of overflow . 
> I have tried to tuned the cachesize, but it doesn't help. 
> 
> 
> What is the best size recommendation for cache ? (percent of guest 
> memory ?) 
> Can I tune it based on some values ? (cachemiss, overflow ?) 
> 
> 
> Regards, 
> 
> Alexandre Derumier 
> System Engineer 
> aderumier at odiso.com 
> 
> 
> 
> 
> Some logs counters of the migration: 
> 
> Sep 03 15:00:32 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 15158 overflow 0 deltacachemiss 15158 
> Sep 03 15:00:34 migration status: active (transferred 119318244, 
> remaining 1987846144), total 2114387968) 
> Sep 03 15:00:34 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 29130 overflow 0 deltacachemiss 13972 
> Sep 03 15:00:36 migration status: active (transferred 156261310, 
> remaining 1342005248), total 2114387968) 
> Sep 03 15:00:36 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 38113 overflow 0 deltacachemiss 8983 
> Sep 03 15:00:38 migration status: active (transferred 195909631, 
> remaining 786370560), total 2114387968) 
> Sep 03 15:00:38 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 47762 overflow 0 deltacachemiss 9649 
> Sep 03 15:00:40 migration status: active (transferred 264583501, 
> remaining 716410880), total 2114387968) 
> Sep 03 15:00:40 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 64528 overflow 0 deltacachemiss 16766 
> Sep 03 15:00:42 migration status: active (transferred 336759138, 
> remaining 644227072), total 2114387968) 
> Sep 03 15:00:42 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 82149 overflow 0 deltacachemiss 17621 
> Sep 03 15:00:44 migration status: active (transferred 399641876, 
> remaining 577712128), total 2114387968) 
> Sep 03 15:00:44 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 97501 overflow 0 deltacachemiss 15352 
> Sep 03 15:00:46 migration status: active (transferred 446500707, 
> remaining 528441344), total 2114387968) 
> Sep 03 15:00:46 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 108941 overflow 0 deltacachemiss 11440 
> Sep 03 15:00:48 migration status: active (transferred 501567884, 
> remaining 471134208), total 2114387968) 
> Sep 03 15:00:48 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 122385 overflow 0 deltacachemiss 13444 
> Sep 03 15:00:50 migration status: active (transferred 566289154, 
> remaining 404901888), total 2114387968) 
> Sep 03 15:00:50 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 138186 overflow 0 deltacachemiss 15801 
> Sep 03 15:00:52 migration status: active (transferred 631297144, 
> remaining 338370560), total 2114387968) 
> Sep 03 15:00:52 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 154057 overflow 0 deltacachemiss 15871 
> Sep 03 15:00:54 migration status: active (transferred 695854441, 
> remaining 272830464), total 2114387968) 
> Sep 03 15:00:54 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 169818 overflow 0 deltacachemiss 15761 
> Sep 03 15:00:56 migration status: active (transferred 763447412, 
> remaining 202059776), total 2114387968) 
> Sep 03 15:00:56 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 186320 overflow 0 deltacachemiss 16502 
> Sep 03 15:00:58 migration status: active (transferred 828361066, 
> remaining 136142848), total 2114387968) 
> Sep 03 15:00:58 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 202168 overflow 0 deltacachemiss 15848 
> Sep 03 15:01:00 migration status: active (transferred 879799289, 
> remaining 82030592), total 2114387968) 
> Sep 03 15:01:00 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 214726 overflow 0 deltacachemiss 12558 
> Sep 03 15:01:02 migration status: active (transferred 940920124, 
> remaining 19603456), total 2114387968) 
> Sep 03 15:01:02 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 229648 overflow 0 deltacachemiss 14922 
> Sep 03 15:01:03 migration status: active (transferred 949001101, 
> remaining 69087232), total 2114387968) 
> Sep 03 15:01:03 migration xbzrle cachesize: 67108864 transferred 0 
> pages 0 cachemiss 231620 overflow 0 deltacachemiss 1972 
> Sep 03 15:01:03 migration status: active (transferred 959106075, 
> remaining 58187776), total 2114387968) 
> Sep 03 15:01:03 migration xbzrle cachesize: 67108864 transferred 100 
> pages 2 cachemiss 234087 overflow 0 deltacachemiss 2467 
> Sep 03 15:01:03 migration status: active (transferred 969236581, 
> remaining 43577344), total 2114387968) 
> Sep 03 15:01:03 migration xbzrle cachesize: 67108864 transferred 100 
> pages 2 cachemiss 236560 overflow 0 deltacachemiss 2473 
> Sep 03 15:01:04 migration status: active (transferred 979374186, 
> remaining 33427456), total 2114387968) 
> Sep 03 15:01:04 migration xbzrle cachesize: 67108864 transferred 100 
> pages 2 cachemiss 239035 overflow 0 deltacachemiss 2475 
> Sep 03 15:01:04 migration status: active (transferred 989479026, 
> remaining 23302144), total 2114387968) 
> Sep 03 15:01:04 migration xbzrle cachesize: 67108864 transferred 100 
> pages 2 cachemiss 241502 overflow 0 deltacachemiss 2467 
> Sep 03 15:01:04 migration status: active (transferred 999747708, 
> remaining 28950528), total 2114387968) 
> Sep 03 15:01:04 migration xbzrle cachesize: 67108864 transferred 100 
> pages 2 cachemiss 244009 overflow 0 deltacachemiss 2507 
> Sep 03 15:01:04 migration status: active (transferred 1006616716, 
> remaining 22032384), total 2114387968) 
> Sep 03 15:01:04 migration xbzrle cachesize: 67108864 transferred 100 
> pages 2 cachemiss 245686 overflow 0 deltacachemiss 1677 
> Sep 03 15:01:05 migration status: active (transferred 1020085038, 
> remaining 18358272), total 2114387968) 
> Sep 03 15:01:05 migration xbzrle cachesize: 67108864 transferred 
> 1905397 pages 991 cachemiss 248381 overflow 128 deltacachemiss 2695 
> Sep 03 15:01:05 migration status: active (transferred 1030213871, 
> remaining 14524416), total 2114387968) 
> Sep 03 15:01:05 migration xbzrle cachesize: 67108864 transferred 
> 6103206 pages 3227 cachemiss 249646 overflow 311 deltacachemiss 1265 
> Sep 03 15:01:05 migration status: active (transferred 1040306669, 
> remaining 7348224), total 2114387968) 
> Sep 03 15:01:05 migration xbzrle cachesize: 67108864 transferred 
> 11579783 pages 6075 cachemiss 250496 overflow 588 deltacachemiss 850 
> Sep 03 15:01:06 migration status: active (transferred 1047695771, 
> remaining 13287424), total 2114387968) 
> Sep 03 15:01:06 migration xbzrle cachesize: 67108864 transferred 
> 15286549 pages 9455 cachemiss 251271 overflow 712 deltacachemiss 775 
> Sep 03 15:01:06 migration status: active (transferred 1054790825, 
> remaining 8896512), total 2114387968) 
> Sep 03 15:01:06 migration xbzrle cachesize: 67108864 transferred 
> 18600974 pages 12483 cachemiss 252020 overflow 886 deltacachemiss 749 
> Sep 03 15:01:06 migration status: active (transferred 1064883713, 
> remaining 3870720), total 2114387968) 
> Sep 03 15:01:06 migration xbzrle cachesize: 67108864 transferred 
> 24180048 pages 15326 cachemiss 252856 overflow 1152 deltacachemiss 836 
> Sep 03 15:01:07 migration status: active (transferred 1073205318, 
> remaining 13889536), total 2114387968) 
> Sep 03 15:01:07 migration xbzrle cachesize: 67108864 transferred 
> 28106603 pages 18135 cachemiss 253769 overflow 1312 deltacachemiss 913 
> Sep 03 15:01:07 migration status: active (transferred 1083269753, 
> remaining 8450048), total 2114387968) 
> Sep 03 15:01:07 migration xbzrle cachesize: 67108864 transferred 
> 33685887 pages 20865 cachemiss 254445 overflow 1731 deltacachemiss 676 
> Sep 03 15:01:07 migration status: active (transferred 1093363118, 
> remaining 13656064), total 2114387968) 
> Sep 03 15:01:07 migration xbzrle cachesize: 67108864 transferred 
> 39318685 pages 23895 cachemiss 255182 overflow 2083 deltacachemiss 737 
> Sep 03 15:01:08 migration status: active (transferred 1104228774, 
> remaining 3948544), total 2114387968) 
> Sep 03 15:01:08 migration xbzrle cachesize: 67108864 transferred 
> 45621367 pages 27392 cachemiss 255988 overflow 2391 deltacachemiss 806 
> Sep 03 15:01:08 migration status: active (transferred 1112828342, 
> remaining 4714496), total 2114387968) 
> Sep 03 15:01:08 migration xbzrle cachesize: 67108864 transferred 
> 50624630 pages 29895 cachemiss 256597 overflow 2660 deltacachemiss 609 
> Sep 03 15:01:08 migration status: active (transferred 1121646599, 
> remaining 5951488), total 2114387968) 
> Sep 03 15:01:08 migration xbzrle cachesize: 67108864 transferred 
> 54638264 pages 32011 cachemiss 257423 overflow 3007 deltacachemiss 826 
> Sep 03 15:01:09 migration status: active (transferred 1131774276, 
> remaining 14245888), total 2114387968) 
> Sep 03 15:01:09 migration xbzrle cachesize: 67108864 transferred 
> 59924446 pages 34904 cachemiss 258311 overflow 3301 deltacachemiss 888 
> Sep 03 15:01:09 migration status: active (transferred 1139357344, 
> remaining 12529664), total 2114387968) 
> Sep 03 15:01:09 migration xbzrle cachesize: 67108864 transferred 
> 62850320 pages 39537 cachemiss 259385 overflow 3364 deltacachemiss 1074 
> Sep 03 15:01:09 migration status: active (transferred 1147848486, 
> remaining 12972032), total 2114387968) 
> Sep 03 15:01:09 migration xbzrle cachesize: 67108864 transferred 
> 67237245 pages 43153 cachemiss 260229 overflow 3522 deltacachemiss 844 
> Sep 03 15:01:10 migration status: active (transferred 1157968777, 
> remaining 7729152), total 2114387968) 
> Sep 03 15:01:10 migration xbzrle cachesize: 67108864 transferred 
> 72753611 pages 45998 cachemiss 260890 overflow 3985 deltacachemiss 661 
> Sep 03 15:01:10 migration status: active (transferred 1168065017, 
> remaining 3137536), total 2114387968) 
> Sep 03 15:01:10 migration xbzrle cachesize: 67108864 transferred 
> 78000165 pages 48646 cachemiss 261660 overflow 4399 deltacachemiss 770 
> Sep 03 15:01:10 migration status: active (transferred 1176461216, 
> remaining 5459968), total 2114387968) 
> Sep 03 15:01:10 migration xbzrle cachesize: 67108864 transferred 
> 81931708 pages 50605 cachemiss 262364 overflow 4785 deltacachemiss 704 
> Sep 03 15:01:11 migration status: active (transferred 1187721613, 
> remaining 15183872), total 2114387968) 
> Sep 03 15:01:11 migration xbzrle cachesize: 67108864 transferred 
> 87588758 pages 53584 cachemiss 263313 overflow 5204 deltacachemiss 949 
> Sep 03 15:01:11 migration status: active (transferred 1196325449, 
> remaining 15134720), total 2114387968) 
> Sep 03 15:01:11 migration xbzrle cachesize: 67108864 transferred 
> 92063809 pages 55810 cachemiss 263933 overflow 5592 deltacachemiss 620 
> Sep 03 15:01:11 migration status: active (transferred 1206419175, 
> remaining 7557120), total 2114387968) 
> Sep 03 15:01:11 migration xbzrle cachesize: 67108864 transferred 
> 97500362 pages 58460 cachemiss 264676 overflow 5986 deltacachemiss 743 
> Sep 03 15:01:11 migration status: active (transferred 1216510694, 
> remaining 15560704), total 2114387968) 
> Sep 03 15:01:11 migration xbzrle cachesize: 67108864 transferred 
> 102480030 pages 61212 cachemiss 265552 overflow 6358 deltacachemiss 876 
> Sep 03 15:01:12 migration status: active (transferred 1225162926, 
> remaining 14811136), total 2114387968) 
> Sep 03 15:01:12 migration xbzrle cachesize: 67108864 transferred 
> 107155027 pages 63456 cachemiss 266234 overflow 6647 deltacachemiss 682 
> Sep 03 15:01:12 migration status: active (transferred 1235228927, 
> remaining 12378112), total 2114387968) 
> Sep 03 15:01:12 migration xbzrle cachesize: 67108864 transferred 
> 112440978 pages 66311 cachemiss 267101 overflow 6947 deltacachemiss 867 
> Sep 03 15:01:12 migration status: active (transferred 1245060361, 
> remaining 14848000), total 2114387968) 
> Sep 03 15:01:12 migration xbzrle cachesize: 67108864 transferred 
> 116886157 pages 68943 cachemiss 268239 overflow 7124 deltacachemiss 
> 1138 
> Sep 03 15:01:13 migration status: active (transferred 1255151722, 
> remaining 14151680), total 2114387968) 
> Sep 03 15:01:13 migration xbzrle cachesize: 67108864 transferred 
> 121058631 pages 71389 cachemiss 269475 overflow 7333 deltacachemiss 
> 1236 
> Sep 03 15:01:13 migration status: active (transferred 1265145124, 
> remaining 12636160), total 2114387968) 
> Sep 03 15:01:13 migration xbzrle cachesize: 67108864 transferred 
> 125804843 pages 74069 cachemiss 270559 overflow 7530 deltacachemiss 
> 1084 
> Sep 03 15:01:13 migration status: active (transferred 1274160338, 
> remaining 9003008), total 2114387968) 
> Sep 03 15:01:13 migration xbzrle cachesize: 67108864 transferred 
> 130109480 pages 76352 cachemiss 271460 overflow 7779 deltacachemiss 901 
> Sep 03 15:01:14 migration status: active (transferred 1285539796, 
> remaining 12382208), total 2114387968) 
> Sep 03 15:01:14 migration xbzrle cachesize: 67108864 transferred 
> 136704693 pages 79967 cachemiss 272399 overflow 8008 deltacachemiss 939 
> Sep 03 15:01:14 migration status: active (transferred 1294465950, 
> remaining 10989568), total 2114387968) 
> Sep 03 15:01:14 migration xbzrle cachesize: 67108864 transferred 
> 141522529 pages 82691 cachemiss 273221 overflow 8189 deltacachemiss 822 
> Sep 03 15:01:14 migration status: active (transferred 1304111247, 
> remaining 12431360), total 2114387968) 
> Sep 03 15:01:14 migration xbzrle cachesize: 67108864 transferred 
> 146256619 pages 85117 cachemiss 274137 overflow 8472 deltacachemiss 916 
> Sep 03 15:01:15 migration status: active (transferred 1313714825, 
> remaining 9031680), total 2114387968) 
> Sep 03 15:01:15 migration xbzrle cachesize: 67108864 transferred 
> 150961349 pages 87828 cachemiss 275101 overflow 8704 deltacachemiss 964 
> Sep 03 15:01:15 migration status: active (transferred 1321615036, 
> remaining 8843264), total 2114387968) 
> Sep 03 15:01:15 migration xbzrle cachesize: 67108864 transferred 
> 155568345 pages 90258 cachemiss 275753 overflow 8856 deltacachemiss 652 
> Sep 03 15:01:15 migration status: active (transferred 1332266783, 
> remaining 4997120), total 2114387968) 
> Sep 03 15:01:15 migration xbzrle cachesize: 67108864 transferred 
> 161419460 pages 93534 cachemiss 276690 overflow 9091 deltacachemiss 937 
> Sep 03 15:01:16 migration status: active (transferred 1340961412, 
> remaining 4333568), total 2114387968) 
> Sep 03 15:01:16 migration xbzrle cachesize: 67108864 transferred 
> 165833625 pages 96166 cachemiss 277571 overflow 9255 deltacachemiss 881 
> Sep 03 15:01:16 migration status: active (transferred 1349569887, 
> remaining 4313088), total 2114387968) 
> Sep 03 15:01:16 migration xbzrle cachesize: 67108864 transferred 
> 170194521 pages 98568 cachemiss 278366 overflow 9497 deltacachemiss 795 
> Sep 03 15:01:16 migration status: active (transferred 1357212762, 
> remaining 5083136), total 2114387968) 
> Sep 03 15:01:16 migration xbzrle cachesize: 67108864 transferred 
> 173651067 pages 100693 cachemiss 279206 overflow 9679 deltacachemiss 
> 840 
> Sep 03 15:01:16 migration status: active (transferred 1362924614, 
> remaining 12259328), total 2114387968) 
> Sep 03 15:01:16 migration xbzrle cachesize: 67108864 transferred 
> 175983690 pages 102350 cachemiss 279936 overflow 9774 deltacachemiss 
> 730 
> Sep 03 15:01:17 migration status: active (transferred 1369555421, 
> remaining 17477632), total 2114387968) 
> Sep 03 15:01:17 migration xbzrle cachesize: 67108864 transferred 
> 178796811 pages 103929 cachemiss 280702 overflow 9940 deltacachemiss 
> 766 
> Sep 03 15:01:17 migration status: active (transferred 1377394106, 
> remaining 17633280), total 2114387968) 
> Sep 03 15:01:17 migration xbzrle cachesize: 67108864 transferred 
> 181986406 pages 106134 cachemiss 281646 overflow 10131 deltacachemiss 
> 944 
> Sep 03 15:01:17 migration status: active (transferred 1383071812, 
> remaining 5853184), total 2114387968) 
> Sep 03 15:01:17 migration xbzrle cachesize: 67108864 transferred 
> 184276689 pages 107825 cachemiss 282388 overflow 10216 deltacachemiss 
> 742 
> Sep 03 15:01:18 migration status: active (transferred 1389248230, 
> remaining 12910592), total 2114387968) 
> Sep 03 15:01:18 migration xbzrle cachesize: 67108864 transferred 
> 187049184 pages 109409 cachemiss 283037 overflow 10398 deltacachemiss 
> 649 
> Sep 03 15:01:18 migration status: active (transferred 1395386430, 
> remaining 20598784), total 2114387968) 
> Sep 03 15:01:18 migration xbzrle cachesize: 67108864 transferred 
> 189005134 pages 110884 cachemiss 283908 overflow 10548 deltacachemiss 
> 871 
> Sep 03 15:01:18 migration status: active (transferred 1402994779, 
> remaining 6443008), total 2114387968) 
> Sep 03 15:01:18 migration xbzrle cachesize: 67108864 transferred 
> 191456304 pages 112393 cachemiss 284917 overflow 10798 deltacachemiss 
> 1009 
> Sep 03 15:01:19 migration status: active (transferred 1409267086, 
> remaining 13611008), total 2114387968) 
> Sep 03 15:01:19 migration xbzrle cachesize: 67108864 transferred 
> 193247446 pages 113783 cachemiss 285846 overflow 10963 deltacachemiss 
> 929 
> Sep 03 15:01:19 migration status: active (transferred 1420299927, 
> remaining 6414336), total 2114387968) 
> Sep 03 15:01:19 migration xbzrle cachesize: 67108864 transferred 
> 197795949 pages 116951 cachemiss 287280 overflow 11112 deltacachemiss 
> 1434 
> Sep 03 15:01:19 migration status: active (transferred 1430776107, 
> remaining 9695232), total 2114387968) 
> Sep 03 15:01:19 migration xbzrle cachesize: 67108864 transferred 
> 202680859 pages 120761 cachemiss 288557 overflow 11200 deltacachemiss 
> 1277 
> Sep 03 15:01:20 migration status: active (transferred 1440821167, 
> remaining 2637824), total 2114387968) 
> Sep 03 15:01:20 migration xbzrle cachesize: 67108864 transferred 
> 208318417 pages 125073 cachemiss 289534 overflow 11299 deltacachemiss 
> 977 
> Sep 03 15:01:20 migration status: active (transferred 1447117251, 
> remaining 12091392), total 2114387968) 
> Sep 03 15:01:20 migration xbzrle cachesize: 67108864 transferred 
> 211300697 pages 127309 cachemiss 290244 overflow 11398 deltacachemiss 
> 710 
> Sep 03 15:01:20 migration status: active (transferred 1456026090, 
> remaining 12906496), total 2114387968) 
> Sep 03 15:01:20 migration xbzrle cachesize: 67108864 transferred 
> 216105094 pages 131039 cachemiss 291149 overflow 11495 deltacachemiss 
> 905 
> Sep 03 15:01:21 migration status: active (transferred 1463954394, 
> remaining 2822144), total 2114387968) 
> Sep 03 15:01:21 migration xbzrle cachesize: 67108864 transferred 
> 220531007 pages 134323 cachemiss 291906 overflow 11593 deltacachemiss 
> 757 
> Sep 03 15:01:21 migration status: active (transferred 1470931218, 
> remaining 11534336), total 2114387968) 
> Sep 03 15:01:21 migration xbzrle cachesize: 67108864 transferred 
> 223866256 pages 137986 cachemiss 292723 overflow 11665 deltacachemiss 
> 817 
> Sep 03 15:01:21 migration status: active (transferred 1477743090, 
> remaining 10235904), total 2114387968) 
> Sep 03 15:01:21 migration xbzrle cachesize: 67108864 transferred 
> 227683667 pages 141111 cachemiss 293368 overflow 11751 deltacachemiss 
> 645 
> Sep 03 15:01:21 migration status: active (transferred 1486951605, 
> remaining 10551296), total 2114387968) 
> Sep 03 15:01:21 migration xbzrle cachesize: 67108864 transferred 
> 232771294 pages 145280 cachemiss 294269 overflow 11856 deltacachemiss 
> 901 
> Sep 03 15:01:22 migration status: active (transferred 1493416356, 
> remaining 14299136), total 2114387968) 
> Sep 03 15:01:22 migration xbzrle cachesize: 67108864 transferred 
> 235959068 pages 148181 cachemiss 294953 overflow 11972 deltacachemiss 
> 684 
> Sep 03 15:01:22 migration status: active (transferred 1502498989, 
> remaining 10592256), total 2114387968) 
> Sep 03 15:01:22 migration xbzrle cachesize: 67108864 transferred 
> 240400566 pages 151598 cachemiss 295980 overflow 12078 deltacachemiss 
> 1027 
> Sep 03 15:01:22 migration status: active (transferred 1511006667, 
> remaining 10240000), total 2114387968) 
> Sep 03 15:01:22 migration xbzrle cachesize: 67108864 transferred 
> 244648073 pages 155655 cachemiss 296923 overflow 12175 deltacachemiss 
> 943 
> Sep 03 15:01:23 migration status: active (transferred 1521022229, 
> remaining 10424320), total 2114387968) 
> Sep 03 15:01:23 migration xbzrle cachesize: 67108864 transferred 
> 250362498 pages 159932 cachemiss 297842 overflow 12306 deltacachemiss 
> 919 
> Sep 03 15:01:23 migration status: active (transferred 1530294933, 
> remaining 9367552), total 2114387968) 
> Sep 03 15:01:23 migration xbzrle cachesize: 67108864 transferred 
> 255219350 pages 163947 cachemiss 298815 overflow 12411 deltacachemiss 
> 973 
> Sep 03 15:01:23 migration status: active (transferred 1540134732, 
> remaining 9908224), total 2114387968) 
> Sep 03 15:01:23 migration xbzrle cachesize: 67108864 transferred 
> 260909578 pages 168294 cachemiss 299727 overflow 12512 deltacachemiss 
> 912 
> Sep 03 15:01:24 migration status: active (transferred 1547801099, 
> remaining 2134016), total 2114387968) 
> Sep 03 15:01:24 migration xbzrle cachesize: 67108864 transferred 
> 263844849 pages 171252 cachemiss 300772 overflow 12622 deltacachemiss 
> 1045 
> Sep 03 15:01:24 migration status: active (transferred 1554064971, 
> remaining 12468224), total 2114387968) 
> Sep 03 15:01:24 migration xbzrle cachesize: 67108864 transferred 
> 267032335 pages 173533 cachemiss 301438 overflow 12707 deltacachemiss 
> 666 
> Sep 03 15:01:24 migration status: active (transferred 1565158149, 
> remaining 11444224), total 2114387968) 
> Sep 03 15:01:24 migration xbzrle cachesize: 67108864 transferred 
> 273009204 pages 178082 cachemiss 302561 overflow 12833 deltacachemiss 
> 1123 
> Sep 03 15:01:25 migration status: active (transferred 1574725942, 
> remaining 11866112), total 2114387968) 
> Sep 03 15:01:25 migration xbzrle cachesize: 67108864 transferred 
> 278128445 pages 182505 cachemiss 303555 overflow 12925 deltacachemiss 
> 994 
> Sep 03 15:01:25 migration status: active (transferred 1584030411, 
> remaining 10473472), total 2114387968) 
> Sep 03 15:01:25 migration xbzrle cachesize: 67108864 transferred 
> 282722425 pages 187028 cachemiss 304611 overflow 13019 deltacachemiss 
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> Sep 03 15:01:25 migration status: active (transferred 1592843701, 
> remaining 2134016), total 2114387968) 
> Sep 03 15:01:25 migration xbzrle cachesize: 67108864 transferred 
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> remaining 6676480), total 2114387968) 
> Sep 03 15:01:26 migration xbzrle cachesize: 67108864 transferred 
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> Sep 03 15:01:26 migration status: active (transferred 1609953585, 
> remaining 12259328), total 2114387968) 
> Sep 03 15:01:26 migration xbzrle cachesize: 67108864 transferred 
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> remaining 4358144), total 2114387968) 
> Sep 03 15:01:26 migration xbzrle cachesize: 67108864 transferred 
> 301634218 pages 203248 cachemiss 308022 overflow 13321 deltacachemiss 
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> Sep 03 15:01:26 migration status: active (transferred 1625047015, 
> remaining 11665408), total 2114387968) 
> Sep 03 15:01:26 migration xbzrle cachesize: 67108864 transferred 
> 305642729 pages 206530 cachemiss 308695 overflow 13353 deltacachemiss 
> 673 
> Sep 03 15:01:27 migration status: active (transferred 1631583544, 
> remaining 8450048), total 2114387968) 
> Sep 03 15:01:27 migration xbzrle cachesize: 67108864 transferred 
> 309520928 pages 209601 cachemiss 309308 overflow 13389 deltacachemiss 
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> Sep 03 15:01:27 migration status: active (transferred 1637654847, 
> remaining 7917568), total 2114387968) 
> Sep 03 15:01:27 migration xbzrle cachesize: 67108864 transferred 
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> 568 
> Sep 03 15:01:27 migration status: active (transferred 1644608997, 
> remaining 6324224), total 2114387968) 
> Sep 03 15:01:27 migration xbzrle cachesize: 67108864 transferred 
> 317303461 pages 215070 cachemiss 310504 overflow 13473 deltacachemiss 
> 628 
> Sep 03 15:01:28 migration status: active (transferred 1652796103, 
> remaining 4423680), total 2114387968) 
> Sep 03 15:01:28 migration xbzrle cachesize: 67108864 transferred 
> 321243002 pages 218055 cachemiss 311465 overflow 13549 deltacachemiss 
> 961 
> Sep 03 15:01:28 migration status: active (transferred 1662238886, 
> remaining 12513280), total 2114387968) 
> Sep 03 15:01:28 migration xbzrle cachesize: 67108864 transferred 
> 326180167 pages 221148 cachemiss 312524 overflow 13590 deltacachemiss 
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> remaining 5959680), total 2114387968) 
> Sep 03 15:01:28 migration xbzrle cachesize: 67108864 transferred 
> 330945203 pages 224318 cachemiss 313295 overflow 13633 deltacachemiss 
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> remaining 5373952), total 2114387968) 
> Sep 03 15:01:29 migration xbzrle cachesize: 67108864 transferred 
> 339032796 pages 228942 cachemiss 314248 overflow 13701 deltacachemiss 
> 953 
> Sep 03 15:01:29 migration status: active (transferred 1691288677, 
> remaining 5660672), total 2114387968) 
> Sep 03 15:01:29 migration xbzrle cachesize: 67108864 transferred 
> 344379577 pages 232454 cachemiss 315033 overflow 13730 deltacachemiss 
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> Sep 03 15:01:29 migration status: active (transferred 1699318970, 
> remaining 13336576), total 2114387968) 
> Sep 03 15:01:29 migration xbzrle cachesize: 67108864 transferred 
> 349546739 pages 235705 cachemiss 315700 overflow 13762 deltacachemiss 
> 667 
> Sep 03 15:01:30 migration status: active (transferred 1709411503, 
> remaining 7815168), total 2114387968) 
> Sep 03 15:01:30 migration xbzrle cachesize: 67108864 transferred 
> 355408081 pages 238683 cachemiss 316531 overflow 13964 deltacachemiss 
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> remaining 12898304), total 2114387968) 
> Sep 03 15:01:30 migration xbzrle cachesize: 67108864 transferred 
> 361350845 pages 241661 cachemiss 317275 overflow 14233 deltacachemiss 
> 744 
> Sep 03 15:01:30 migration status: active (transferred 1728857886, 
> remaining 6778880), total 2114387968) 
> Sep 03 15:01:30 migration xbzrle cachesize: 67108864 transferred 
> 366736158 pages 244405 cachemiss 317948 overflow 14529 deltacachemiss 
> 673 
> Sep 03 15:01:31 migration status: active (transferred 1738122997, 
> remaining 2527232), total 2114387968) 
> Sep 03 15:01:31 migration xbzrle cachesize: 67108864 transferred 
> 372220641 pages 246999 cachemiss 318550 overflow 14850 deltacachemiss 
> 602 
> Sep 03 15:01:31 migration status: active (transferred 1745051297, 
> remaining 2850816), total 2114387968) 
> Sep 03 15:01:31 migration xbzrle cachesize: 67108864 transferred 
> 376056452 pages 248933 cachemiss 319032 overflow 15123 deltacachemiss 
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> Sep 03 15:01:31 migration status: active (transferred 1754719918, 
> remaining 12759040), total 2114387968) 
> Sep 03 15:01:31 migration xbzrle cachesize: 67108864 transferred 
> 381239933 pages 251517 cachemiss 319744 overflow 15506 deltacachemiss 
> 712 
> Sep 03 15:01:32 migration status: active (transferred 1763103223, 
> remaining 9637888), total 2114387968) 
> Sep 03 15:01:32 migration xbzrle cachesize: 67108864 transferred 
> 385265065 pages 254298 cachemiss 320538 overflow 15776 deltacachemiss 
> 794 
> Sep 03 15:01:32 migration status: active (transferred 1771003331, 
> remaining 3596288), total 2114387968) 
> Sep 03 15:01:32 migration xbzrle cachesize: 67108864 transferred 
> 388708690 pages 257558 cachemiss 321498 overflow 15904 deltacachemiss 
> 960 
> Sep 03 15:01:32 migration status: active (transferred 1778157089, 
> remaining 12443648), total 2114387968) 
> Sep 03 15:01:32 migration xbzrle cachesize: 67108864 transferred 
> 392561052 pages 260534 cachemiss 322166 overflow 16042 deltacachemiss 
> 668 
> Sep 03 15:01:33 migration status: active (transferred 1788495031, 
> remaining 10276864), total 2114387968) 
> Sep 03 15:01:33 migration xbzrle cachesize: 67108864 transferred 
> 398295061 pages 264848 cachemiss 323101 overflow 16231 deltacachemiss 
> 935 
> Sep 03 15:01:33 migration status: active (transferred 1794009984, 
> remaining 11046912), total 2114387968) 
> Sep 03 15:01:33 migration xbzrle cachesize: 67108864 transferred 
> 400795337 pages 266649 cachemiss 323687 overflow 16381 deltacachemiss 
> 586 
> Sep 03 15:01:33 migration status: active (transferred 1802929181, 
> remaining 5738496), total 2114387968) 
> Sep 03 15:01:33 migration xbzrle cachesize: 67108864 transferred 
> 406032198 pages 269339 cachemiss 324245 overflow 16722 deltacachemiss 
> 558 
> Sep 03 15:01:33 migration status: active (transferred 1813019717, 
> remaining 13381632), total 2114387968) 
> Sep 03 15:01:33 migration xbzrle cachesize: 67108864 transferred 
> 412084058 pages 272447 cachemiss 324891 overflow 17062 deltacachemiss 
> 646 
> Sep 03 15:01:34 migration status: active (transferred 1822507168, 
> remaining 3809280), total 2114387968) 
> Sep 03 15:01:34 migration xbzrle cachesize: 67108864 transferred 
> 416672658 pages 275640 cachemiss 325836 overflow 17313 deltacachemiss 
> 945 
> Sep 03 15:01:34 migration status: active (transferred 1829060930, 
> remaining 10371072), total 2114387968) 
> Sep 03 15:01:34 migration xbzrle cachesize: 67108864 transferred 
> 418147336 pages 279826 cachemiss 327002 overflow 17387 deltacachemiss 
> 1166 
> Sep 03 15:01:34 migration status: active (transferred 1835035082, 
> remaining 11374592), total 2114387968) 
> Sep 03 15:01:34 migration xbzrle cachesize: 67108864 transferred 
> 419374185 pages 284812 cachemiss 328106 overflow 17442 deltacachemiss 
> 1104 
> Sep 03 15:01:35 migration status: active (transferred 1840925069, 
> remaining 11190272), total 2114387968) 
> Sep 03 15:01:35 migration xbzrle cachesize: 67108864 transferred 
> 420520965 pages 289916 cachemiss 329221 overflow 17485 deltacachemiss 
> 1115 
> Sep 03 15:01:35 migration status: active (transferred 1846770014, 
> remaining 9371648), total 2114387968) 
> Sep 03 15:01:35 migration xbzrle cachesize: 67108864 transferred 
> 421458853 pages 294580 cachemiss 330372 overflow 17532 deltacachemiss 
> 1151 
> Sep 03 15:01:35 migration status: active (transferred 1853314839, 
> remaining 2514944), total 2114387968) 
> Sep 03 15:01:35 migration xbzrle cachesize: 67108864 transferred 
> 423964993 pages 298173 cachemiss 331222 overflow 17668 deltacachemiss 
> 850 
> Sep 03 15:01:36 migration status: active (transferred 1862231519, 
> remaining 15454208), total 2114387968) 
> Sep 03 15:01:36 migration xbzrle cachesize: 67108864 transferred 
> 428937200 pages 301153 cachemiss 331999 overflow 17854 deltacachemiss 
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> Sep 03 15:01:36 migration status: active (transferred 1870584409, 
> remaining 11419648), total 2114387968) 
> Sep 03 15:01:36 migration xbzrle cachesize: 67108864 transferred 
> 431326236 pages 304655 cachemiss 333333 overflow 17976 deltacachemiss 
> 1334 
> Sep 03 15:01:36 migration status: active (transferred 1878153329, 
> remaining 4648960), total 2114387968) 
> Sep 03 15:01:36 migration xbzrle cachesize: 67108864 transferred 
> 434057751 pages 307541 cachemiss 334375 overflow 18115 deltacachemiss 
> 1042 
> Sep 03 15:01:37 migration status: active (transferred 1885289154, 
> remaining 12533760), total 2114387968) 
> Sep 03 15:01:37 migration xbzrle cachesize: 67108864 transferred 
> 438228048 pages 310420 cachemiss 334915 overflow 18299 deltacachemiss 
> 540 
> Sep 03 15:01:37 migration status: active (transferred 1892622878, 
> remaining 4374528), total 2114387968) 
> Sep 03 15:01:37 migration xbzrle cachesize: 67108864 transferred 
> 441490323 pages 313985 cachemiss 335735 overflow 18473 deltacachemiss 
> 820 
> Sep 03 15:01:37 migration status: active (transferred 1901073971, 
> remaining 13205504), total 2114387968) 
> Sep 03 15:01:37 migration xbzrle cachesize: 67108864 transferred 
> 446529428 pages 316687 cachemiss 336305 overflow 18736 deltacachemiss 
> 570 
> Sep 03 15:01:38 migration status: active (transferred 1910878152, 
> remaining 9048064), total 2114387968) 
> Sep 03 15:01:38 migration xbzrle cachesize: 67108864 transferred 
> 451586319 pages 319720 cachemiss 337190 overflow 19010 deltacachemiss 
> 885 
> Sep 03 15:01:38 migration status: active (transferred 1918738540, 
> remaining 10661888), total 2114387968) 
> Sep 03 15:01:38 migration xbzrle cachesize: 67108864 transferred 
> 455338404 pages 321664 cachemiss 337933 overflow 19270 deltacachemiss 
> 743 
> Sep 03 15:01:38 migration status: active (transferred 1928827689, 
> remaining 6860800), total 2114387968) 
> Sep 03 15:01:38 migration xbzrle cachesize: 67108864 transferred 
> 460549198 pages 324277 cachemiss 338738 overflow 19656 deltacachemiss 
> 805 
> Sep 03 15:01:38 migration status: active (transferred 1937151384, 
> remaining 3428352), total 2114387968) 
> Sep 03 15:01:38 migration xbzrle cachesize: 67108864 transferred 
> 465043115 pages 326494 cachemiss 339336 overflow 19993 deltacachemiss 
> 598 
> Sep 03 15:01:39 migration status: active (transferred 1946239164, 
> remaining 13590528), total 2114387968) 
> Sep 03 15:01:39 migration xbzrle cachesize: 67108864 transferred 
> 469952951 pages 328931 cachemiss 339977 overflow 20372 deltacachemiss 
> 641 
> Sep 03 15:01:39 migration status: active (transferred 1955868111, 
> remaining 2822144), total 2114387968) 
> Sep 03 15:01:39 migration xbzrle cachesize: 67108864 transferred 
> 474850991 pages 332609 cachemiss 340857 overflow 20647 deltacachemiss 
> 880 
> Sep 03 15:01:39 migration status: active (transferred 1965033342, 
> remaining 7884800), total 2114387968) 
> Sep 03 15:01:39 migration xbzrle cachesize: 67108864 transferred 
> 479064122 pages 336578 cachemiss 341853 overflow 20860 deltacachemiss 
> 996 
> Sep 03 15:01:40 migration status: active (transferred 1972991062, 
> remaining 8335360), total 2114387968) 
> Sep 03 15:01:40 migration xbzrle cachesize: 67108864 transferred 
> 482389235 pages 340369 cachemiss 342906 overflow 20938 deltacachemiss 
> 1053 
> Sep 03 15:01:40 migration status: active (transferred 1978818556, 
> remaining 10371072), total 2114387968) 
> Sep 03 15:01:40 migration xbzrle cachesize: 67108864 transferred 
> 483760246 pages 344727 cachemiss 343955 overflow 20977 deltacachemiss 
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> remaining 2367488), total 2114387968) 
> Sep 03 15:01:40 migration xbzrle cachesize: 67108864 transferred 
> 485600711 pages 348240 cachemiss 344922 overflow 21029 deltacachemiss 
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> Sep 03 15:01:41 migration status: active (transferred 1992114731, 
> remaining 4120576), total 2114387968) 
> Sep 03 15:01:41 migration xbzrle cachesize: 67108864 transferred 
> 489704053 pages 351282 cachemiss 345551 overflow 21176 deltacachemiss 
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> remaining 12619776), total 2114387968) 
> Sep 03 15:01:41 migration xbzrle cachesize: 67108864 transferred 
> 495339032 pages 354218 cachemiss 346153 overflow 21385 deltacachemiss 
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> remaining 5206016), total 2114387968) 
> Sep 03 15:01:41 migration xbzrle cachesize: 67108864 transferred 
> 501454775 pages 357298 cachemiss 346854 overflow 21652 deltacachemiss 
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> remaining 4804608), total 2114387968) 
> Sep 03 15:01:42 migration xbzrle cachesize: 67108864 transferred 
> 505945161 pages 359691 cachemiss 347502 overflow 22016 deltacachemiss 
> 648 
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> remaining 12754944), total 2114387968) 
> Sep 03 15:01:42 migration xbzrle cachesize: 67108864 transferred 
> 510999852 pages 362419 cachemiss 348359 overflow 22387 deltacachemiss 
> 857 
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> remaining 5341184), total 2114387968) 
> Sep 03 15:01:42 migration xbzrle cachesize: 67108864 transferred 
> 516535788 pages 365431 cachemiss 349089 overflow 22769 deltacachemiss 
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> remaining 13049856), total 2114387968) 
> Sep 03 15:01:42 migration xbzrle cachesize: 67108864 transferred 
> 519742235 pages 368455 cachemiss 349752 overflow 22990 deltacachemiss 
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> remaining 6127616), total 2114387968) 
> Sep 03 15:01:43 migration xbzrle cachesize: 67108864 transferred 
> 524764472 pages 371518 cachemiss 350495 overflow 23410 deltacachemiss 
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> remaining 5545984), total 2114387968) 
> Sep 03 15:01:43 migration xbzrle cachesize: 67108864 transferred 
> 532054161 pages 375458 cachemiss 351436 overflow 23974 deltacachemiss 
> 941 
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> remaining 16842752), total 2114387968) 
> Sep 03 15:01:43 migration xbzrle cachesize: 67108864 transferred 
> 537186091 pages 378300 cachemiss 352183 overflow 24438 deltacachemiss 
> 747 
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> remaining 19959808), total 2114387968) 
> Sep 03 15:01:44 migration xbzrle cachesize: 67108864 transferred 
> 541281406 pages 380898 cachemiss 353159 overflow 24775 deltacachemiss 
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> remaining 3334144), total 2114387968) 
> Sep 03 15:01:44 migration xbzrle cachesize: 67108864 transferred 
> 544596639 pages 382825 cachemiss 354171 overflow 25187 deltacachemiss 
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> remaining 8888320), total 2114387968) 
> Sep 03 15:01:44 migration xbzrle cachesize: 67108864 transferred 
> 547735772 pages 384605 cachemiss 355136 overflow 25556 deltacachemiss 
> 965 
> Sep 03 15:01:45 migration status: active (transferred 2117427470, 
> remaining 6184960), total 2114387968) 
> Sep 03 15:01:45 migration xbzrle cachesize: 67108864 transferred 
> 551515759 pages 386875 cachemiss 356245 overflow 25985 deltacachemiss 
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> remaining 6643712), total 2114387968) 
> Sep 03 15:01:45 migration xbzrle cachesize: 67108864 transferred 
> 555519519 pages 389206 cachemiss 357355 overflow 26362 deltacachemiss 
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> remaining 6840320), total 2114387968) 
> Sep 03 15:01:45 migration xbzrle cachesize: 67108864 transferred 
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> remaining 7704576), total 2114387968) 
> Sep 03 15:01:46 migration xbzrle cachesize: 67108864 transferred 
> 563133130 pages 393677 cachemiss 359363 overflow 27166 deltacachemiss 
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> remaining 8384512), total 2114387968) 
> Sep 03 15:01:46 migration xbzrle cachesize: 67108864 transferred 
> 566870481 pages 395661 cachemiss 360401 overflow 27539 deltacachemiss 
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> remaining 18784256), total 2114387968) 
> Sep 03 15:01:46 migration xbzrle cachesize: 67108864 transferred 
> 569030821 pages 396971 cachemiss 361078 overflow 27786 deltacachemiss 
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> remaining 10747904), total 2114387968) 
> Sep 03 15:01:47 migration xbzrle cachesize: 67108864 transferred 
> 570951584 pages 397932 cachemiss 361557 overflow 28138 deltacachemiss 
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> remaining 25628672), total 2114387968) 
> Sep 03 15:01:47 migration xbzrle cachesize: 67108864 transferred 
> 572772376 pages 399193 cachemiss 362323 overflow 28331 deltacachemiss 
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> remaining 8200192), total 2114387968) 
> Sep 03 15:01:47 migration xbzrle cachesize: 67108864 transferred 
> 575605975 pages 400618 cachemiss 363152 overflow 28859 deltacachemiss 
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> remaining 11202560), total 2114387968) 
> Sep 03 15:01:47 migration xbzrle cachesize: 67108864 transferred 
> 578513648 pages 402362 cachemiss 364245 overflow 29074 deltacachemiss 
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> remaining 14094336), total 2114387968) 
> Sep 03 15:01:48 migration xbzrle cachesize: 67108864 transferred 
> 580246400 pages 404116 cachemiss 365082 overflow 29286 deltacachemiss 
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> remaining 12357632), total 2114387968) 
> Sep 03 15:01:48 migration xbzrle cachesize: 67108864 transferred 
> 581462307 pages 407577 cachemiss 366385 overflow 29327 deltacachemiss 
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> remaining 2859008), total 2114387968) 
> Sep 03 15:01:48 migration xbzrle cachesize: 67108864 transferred 
> 583350325 pages 413084 cachemiss 367860 overflow 29393 deltacachemiss 
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> remaining 7753728), total 2114387968) 
> Sep 03 15:01:49 migration xbzrle cachesize: 67108864 transferred 
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> remaining 10366976), total 2114387968) 
> Sep 03 15:01:49 migration xbzrle cachesize: 67108864 transferred 
> 589009723 pages 417307 cachemiss 368910 overflow 29902 deltacachemiss 
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> Sep 03 15:01:49 migration status: active (transferred 2229668707, 
> remaining 12546048), total 2114387968) 
> Sep 03 15:01:49 migration xbzrle cachesize: 67108864 transferred 
> 592545964 pages 419113 cachemiss 369404 overflow 30211 deltacachemiss 
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> remaining 13078528), total 2114387968) 


Alexandre D e rumier Ingénieur Systèmes et Réseaux Fixe : 03 20 68 88 85 Fax : 03 20 68 90 88 45 Bvd du Général Leclerc 59100 Roubaix 12 rue Marivaux 75002 Paris