BBlack has uploaded a new change for review.
https://gerrit.wikimedia.org/r/298499
Change subject: cache perf: remove vm compaction cron
......................................................................
cache perf: remove vm compaction cron
This was historically necessary as indicated in the removed
commentary. We *believe* the newer kernels we've been running
don't actually need this anymore (since quite a long time ago,
actually), especially given the vm background-flush tuning later
in this same file.
This is an experiment: we'll need to keep an eye out for sys%
spikes on cache_upload as mentioned in the removed commentary for
the next few weeks, and revert this if things look problematic.
Change-Id: If5feaf0cacbb1890bbe8f60c2ea8a292785ba645
---
M modules/role/manifests/cache/perf.pp
1 file changed, 0 insertions(+), 12 deletions(-)
git pull ssh://gerrit.wikimedia.org:29418/operations/puppet
refs/changes/99/298499/1
diff --git a/modules/role/manifests/cache/perf.pp
b/modules/role/manifests/cache/perf.pp
index 24a5101..2c83013 100644
--- a/modules/role/manifests/cache/perf.pp
+++ b/modules/role/manifests/cache/perf.pp
@@ -4,18 +4,6 @@
class role::cache::perf {
include cpufrequtils # defaults to "performance"
- # This seems to prevent long term memory fragmentation issues that
- # can cause VM perf issues. This seems to be less necessary on jessie
- # with other assorted fixes in place, and we could experiment with
- # removing it entirely at a later time when things are more stable.
- # (watch for small but increasing sys% spikes on upload caches if so,
- # may take days to have real effect).
- cron { 'varnish_vm_compact_cron':
- command => 'echo 1 >/proc/sys/vm/compact_memory',
- user => 'root',
- minute => '*',
- }
-
# Bump min_free_kbytes to ensure network buffers are available quickly
# without having to evict cache on the spot
vm::min_free_kbytes { 'cache':
--
To view, visit https://gerrit.wikimedia.org/r/298499
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: newchange
Gerrit-Change-Id: If5feaf0cacbb1890bbe8f60c2ea8a292785ba645
Gerrit-PatchSet: 1
Gerrit-Project: operations/puppet
Gerrit-Branch: production
Gerrit-Owner: BBlack <[email protected]>
_______________________________________________
MediaWiki-commits mailing list
[email protected]
https://lists.wikimedia.org/mailman/listinfo/mediawiki-commits
