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| author | Eric Dumazet <edumazet@google.com> | 2022-05-15 21:24:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-05-16 11:33:59 +0100 |
| commit | 909876500251b3b48480a840bbf9053588254eee (patch) | |
| tree | d5be1a42e32e55e228aeee48bc252b5fa2db4d8b /tools/perf/scripts/python/net_dropmonitor.py | |
| parent | net: add skb_defer_max sysctl (diff) | |
| download | linux-909876500251b3b48480a840bbf9053588254eee.tar.gz linux-909876500251b3b48480a840bbf9053588254eee.zip | |
net: call skb_defer_free_flush() before each napi_poll()
skb_defer_free_flush() can consume cpu cycles,
it seems better to call it in the inner loop:
- Potentially frees page/skb that will be reallocated while hot.
- Account for the cpu cycles in the @time_limit determination.
- Keep softnet_data.defer_count small to reduce chances for
skb_attempt_defer_free() to send an IPI.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/net_dropmonitor.py')
0 files changed, 0 insertions, 0 deletions