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| author | Stephen Worley <sworley@cumulusnetworks.com> | 2019-06-25 16:49:43 +0200 |
|---|---|---|
| committer | Stephen Worley <sworley@cumulusnetworks.com> | 2019-06-25 16:49:43 +0200 |
| commit | 018fa5f85dad6324c08b3f1fddf7553bc63819dd (patch) | |
| tree | 9f81139df129a99dd648b27828396e68f2ea58bf /doc | |
| parent | lib: Remove extraneous spacing/output filter cmds (diff) | |
| download | frr-018fa5f85dad6324c08b3f1fddf7553bc63819dd.tar.xz frr-018fa5f85dad6324c08b3f1fddf7553bc63819dd.zip | |
doc: Add a performance note for log filtering
Add a not under the log-filter command to indicate
that, while filtering reduces load on the system by
large margins, there may still be a small performance
hit from filtering those.
Signed-off-by: Stephen Worley <sworley@cumulusnetworks.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/user/basic.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/user/basic.rst b/doc/user/basic.rst index 8395087e8..5509fd5f0 100644 --- a/doc/user/basic.rst +++ b/doc/user/basic.rst @@ -199,6 +199,13 @@ Basic Config Commands will only be printed if it matches on one of the filters in the log-filter table. Can be daemon independent. + .. note:: + + Log filters help when you need to turn on debugs that cause significant + load on the system (enabling certain debugs can bring FRR to a halt). + Log filters prevent this but you should still expect a small performance + hit due to filtering each of all those logs. + .. index:: log-filter clear [DAEMON] .. clicmd:: log-filter clear [DAEMON] |