[PVE-User] Linux improvements for ceph and general running vm's

Gilberto Nunes gilberto.nunes32 at gmail.com
Mon Aug 27 13:34:35 CEST 2018


Hi Alexander

1 - Ceph.conf are untouched
2 - network is gigaethernet with bond balance-rr 4 nic each  6 servers
3 - hdd all is sata
4 - each server has a standard ssd

Thanks



Em seg, 27 de ago de 2018 03:34, Alexandre DERUMIER <aderumier at odiso.com>
escreveu:

> Hi,
>
> do you want to improve latency or throughput ?
>
>
> They are lot of thing to tune in ceph.conf before tuning network.
> can you send your ceph.conf too ? (ceph cluster && proxmox nodes if ceph
> is outside proxmox)
>
> ssd ? hdd ?
>
>
> ----- Mail original -----
> De: "Gilberto Nunes" <gilberto.nunes32 at gmail.com>
> À: "proxmoxve" <pve-user at pve.proxmox.com>
> Envoyé: Lundi 27 Août 2018 05:00:52
> Objet: [PVE-User] Linux improvements for ceph and general running vm's
>
> Hi there
>
> Can any one tell me if this options bellow can improve somethings related
> network:
>
> net.ipv4.tcp_low_latency = 1
> net.core.rmem_default = 10000000
> net.core.wmem_default = 10000000
> net.core.rmem_max = 16777216
> net.core.wmem_max = 16777216
>
> net.ipv4.tcp_rfc1337=1
>
> net.ipv4.tcp_window_scaling=1
>
> net.ipv4.tcp_workaround_signed_windows=1
>
> net.ipv4.tcp_sack=1
>
> net.ipv4.tcp_fack=1
>
> net.ipv4.tcp_low_latency=1
>
> net.ipv4.ip_no_pmtu_disc=0
>
> net.ipv4.tcp_mtu_probing=1
>
> net.ipv4.tcp_frto=2
>
> net.ipv4.tcp_frto_response=2
>
> net.ipv4.tcp_congestion_control=illinois
>
> Thanks a lot
>
> ---
> Gilberto Nunes Ferreira
>
> (47) 3025-5907
> (47) 99676-7530 - Whatsapp / Telegram
>
> Skype: gilberto.nunes36
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