[PVE-User] Very slow install of applications in Windows 2008R2 VM on Proxmox - What is the cause?

Sun Sep 22 10:25:45 CEST 2013

Hi, iostat seem to say that your disk saturate (%util 97%)

what is your hardware disk setup ? (disk rotation speed ? raid ? soft/hard ? filesystem used).

For the vm, what cache option do you use for the virtual drive ?

you can already speedup the vm using virtio drivers.

qcow2 have also a little overhead, if you don't need snapshot, you can try with raw.

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

De: "Bruce B" <bruceb444 at gmail.com> 
À: "proxmoxve (pve-user at pve.proxmox.com)" <pve-user at pve.proxmox.com> 
Envoyé: Vendredi 20 Septembre 2013 21:33:32 
Objet: [PVE-User] Very slow install of applications in Windows 2008R2 VM on Proxmox - What is the cause? 

Hi Everyone, 

I am seeing very slow install of applications within a Windows 2008R2 VM that I built with 24Gbs of RAM (no users on it yet) and the Proxmox server is a DL160 G6 with Dual L5520 Xeon quad core CPUs. I don't see why this is acting so slow. I am looking for suggestions on how to make this work faster. 

Below are my findings of IO stats and HDD specifications. I would like to know if there is any hope to this server. I am running Windows 2008 R2 in IDE0 and QCOW mode. 

root at hp:~# iostat -xkd 2 (util shows over 97% below as a program is being installed) 
Linux 2.6.32-22-pve (hp) 09/20/2013 _x86_64_ (16 CPU) 

Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util 

sda 0.00 13.50 0.00 94.50 0.00 9023.25 190.97 2.41 25.43 0.00 25.43 10.32 97.50 
dm-0 0.00 0.00 0.00 13.00 0.00 52.00 8.00 0.70 54.15 0.00 54.15 6.77 8.80 
dm-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 
dm-2 0.00 0.00 0.00 95.00 0.00 8913.25 187.65 2.29 24.12 0.00 24.12 10.24 97.30 

hdparm output: 
ATA device, with non-removable media
        Model Number:       WDC WD5001AALS-00E3A0                   
        Serial Number:      WD-WCATR2413417
        Firmware Revision:  05.01D05
        Transport:          Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6
Standards:
        Supported: 8 7 6 5 
        Likely used: 8
Configuration:
        Logical         max     current
        cylinders       16383   16383
        heads           16      16
        sectors/track   63      63
        --
        CHS current addressable sectors:   16514064
        LBA    user addressable sectors:  268435455
        LBA48  user addressable sectors:  976773168
        Logical/Physical Sector size:           512 bytes
        device size with M = 1024*1024:      476940 MBytes
        device size with M = 1000*1000:      500107 MBytes (500 GB)
        cache/buffer size  = unknown
Capabilities:
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, with device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 0
        Recommended acoustic management value: 128, current value: 254
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4 
             Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           *    SMART feature set
                Security Mode feature set
           *    Power Management feature set
                Write cache
           *    Look-ahead
           *    Host Protected Area feature set
           *    WRITE_BUFFER command
           *    READ_BUFFER command
           *    NOP cmd
           *    DOWNLOAD_MICROCODE
                Power-Up In Standby feature set
           *    SET_FEATURES required to spinup after power up
                SET_MAX security extension
                Automatic Acoustic Management feature set
           *    48-bit Address feature set
           *    Device Configuration Overlay feature set
           *    Mandatory FLUSH_CACHE
           *    FLUSH_CACHE_EXT
           *    SMART error logging
           *    SMART self-test
           *    General Purpose Logging feature set
           *    64-bit World wide name
           *    {READ,WRITE}_DMA_EXT_GPL commands
           *    Segmented DOWNLOAD_MICROCODE
           *    Gen1 signaling speed (1.5Gb/s)
           *    Gen2 signaling speed (3.0Gb/s)
           *    Native Command Queueing (NCQ)
           *    Host-initiated interface power management
           *    Phy event counters
           *    NCQ priority information
           *    DMA Setup Auto-Activate optimization
           *    Software settings preservation
           *    SMART Command Transport (SCT) feature set
           *    SCT Long Sector Access (AC1)
           *    SCT LBA Segment Access (AC2)
           *    SCT Features Control (AC4)
           *    SCT Data Tables (AC5)
                unknown 206[12] (vendor specific)
                unknown 206[13] (vendor specific)
Security: 
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
                supported: enhanced erase
        102min for SECURITY ERASE UNIT. 102min for ENHANCED SECURITY ERASE UNIT. 
Logical Unit WWN Device Identifier: 50014ee2af8fec40
        NAA             : 5
        IEEE OUI        : 0014ee
        Unique ID       : 2af8fec40 
Thanks, 
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