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docs: Update Performance.md (#7061)

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* Update Performance.md

added more info for cron job for the poller wrapper.

* Update Performance.md

fixed formatting error.
This commit is contained in:
kkrumm1
2017-07-20 14:08:36 -05:00
committed by Neil Lathwood
parent d1e8458b31
commit ac5b2c663c
1 changed files with 7 additions and 0 deletions
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doc/Support/Performance.md
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@ -65,6 +65,13 @@ You can also set this globally with the config option `$config['snmp']['max_oid'
The default 16 threads that `poller-wrapper.py` runs as isn't necessarily the optimal number. A general rule of thumb is
2 threads per core but we suggest that you play around with lowering / increasing the number until you get the optimal value.
This can be changed by going to the cron job for librenms. Usually in /etc/cron.d/librenms and changing the "16"
*/5 * * * * librenms /opt/librenms/cronic /opt/librenms/poller-wrapper.py 16
KEEP in MIND that this dosnt always help, it depnds on your system and CPU. So Be careful.
#### Recursive DNS
If your install uses hostnames for devices and you have quite a lot then it's advisable to setup a local recursive dns instance on the