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| author |   Eric Dumazet <edumazet@google.com> | 2014-07-24 06:36:50 +0200 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2014-07-24 13:07:25 +0200 |
| commit | 7bd8490eef9776ced7632345df5133384b6be0fe (patch) | |
| tree | cb5130cc165142998ac5729e8de9b26c622bb7e1 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | netfilter: nf_tables: simplify set dump through netlink (diff) | |
| download | linux-dev-7bd8490eef9776ced7632345df5133384b6be0fe.tar.xz linux-dev-7bd8490eef9776ced7632345df5133384b6be0fe.zip | |
netfilter: xt_hashlimit: perform garbage collection from process context
xt_hashlimit cannot be used with large hash tables, because garbage
collector is run from a timer. If table is really big, its possible
to hold cpu for more than 500 msec, which is unacceptable.
Switch to a work queue, and use proper scheduling points to remove
latencies spikes.
Later, we also could switch to a smoother garbage collection done
at lookup time, one bucket at a time...
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Cc: Patrick McHardy <kaber@trash.net>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions