BBlack has submitted this change and it was merged.
Change subject: LVS: sysctl netdev tuning
......................................................................
LVS: sysctl netdev tuning
Somehow we seem to have lost even basic netdev_max_backlog on the
LVS machines (other than the 2500 from base), although I think we
had it there at one point historically. Perhaps it was lost
during mysterious-sysctl move?
This copies over the basics from the recently-updated cache server
tuning, and uses the full 10GbE recommended value for max_backlog.
netdev_budget may need a further increase, but we'll see how it
plays out on LVS and caches before raising it further. The LVS
see more column-3 counters than even the caches do, indicating
we're pretty far off on budget today.
Change-Id: If0ce69165c5abaf4b4eaff7268be0f5c90d8c4e6
---
M modules/lvs/manifests/balancer.pp
1 file changed, 6 insertions(+), 0 deletions(-)
Approvals:
BBlack: Looks good to me, approved
jenkins-bot: Verified
diff --git a/modules/lvs/manifests/balancer.pp
b/modules/lvs/manifests/balancer.pp
index b7062bf..7e6df30 100644
--- a/modules/lvs/manifests/balancer.pp
+++ b/modules/lvs/manifests/balancer.pp
@@ -58,6 +58,12 @@
'net.ipv4.vs.drop_entry' => 1,
# Also schedule ICMPs, like e.g. fragmentation needed (needs Linux
4.4.0)
'net.ipv4.vs.schedule_icmp' => 1,
+
+ # basic netdev tuning for 10GbE interfaces at full speed with RPS.
+ # See deeper details in role::cache::perf
+ 'net.core.netdev_max_backlog' => 300000,
+ 'net.core.netdev_budget' => 1024,
+ 'net.core.netdev_tstamp_prequeue' => 0,
},
}
}
--
To view, visit https://gerrit.wikimedia.org/r/295544
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: merged
Gerrit-Change-Id: If0ce69165c5abaf4b4eaff7268be0f5c90d8c4e6
Gerrit-PatchSet: 5
Gerrit-Project: operations/puppet
Gerrit-Branch: production
Gerrit-Owner: BBlack <[email protected]>
Gerrit-Reviewer: BBlack <[email protected]>
Gerrit-Reviewer: Ema <[email protected]>
Gerrit-Reviewer: jenkins-bot <>
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