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| author | Li RongQing <lirongqing@baidu.com> | 2018-12-06 11:08:17 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-12-06 23:15:27 +0300 |
| commit | 83b1bc122cab87547731a154db5feec5b9d4807c (patch) | |
| tree | d338b04983991a80cc807a0d01282f05076a65d1 /tools/perf/scripts/python/bin/export-to-postgresql-report | |
| parent | 7a35a50df5a34e6eaee1b1f4f913b84879068fee (diff) | |
| download | linux-83b1bc122cab87547731a154db5feec5b9d4807c.tar.xz | |
tun: align write-heavy flow entry members to a cache line
tun flow entry 'updated' fields are written when receive
every packet. Thus if a flow is receiving packets from a
particular flow entry, it'll cause false-sharing with
all the other who has looked it up, so move it in its own
cache line
and update 'queue_index' and 'update' field only when
they are changed to reduce the cache false-sharing.
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Signed-off-by: Wang Li <wangli39@baidu.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/bin/export-to-postgresql-report')
0 files changed, 0 insertions, 0 deletions