| commit | 52db70dca5c206741f4f5c89410a2d32864f9840 | |
| author | Eric Dumazet <edumazet@google.com> | |
| Fri, 10 Apr 2015 13:07:18 +0000 (10 06:07 -0700) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Mon, 13 Apr 2015 01:16:05 +0000 (12 21:16 -0400) | ||
| tree | 062b1d5355a19d40047ce39798bf38e9cfddeb7a | treesnapshot (tar.gz zip) |
| parent | 4e78eb0dbf867ccf206706ff2af34084f71a99bf | commitdiff |
tcp: do not cache align timewait sockets
With recent adoption of skc_cookie in struct sock_common,
struct tcp_timewait_sock size increased from 192 to 200 bytes
on 64bit arches. SLAB rounds then to 256 bytes.
It is time to drop SLAB_HWCACHE_ALIGN constraint for twsk_slab.
This saves about 12 MB of memory on typical configuration reaching
262144 timewait sockets, and has no noticeable impact on performance.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With recent adoption of skc_cookie in struct sock_common,
struct tcp_timewait_sock size increased from 192 to 200 bytes
on 64bit arches. SLAB rounds then to 256 bytes.
It is time to drop SLAB_HWCACHE_ALIGN constraint for twsk_slab.
This saves about 12 MB of memory on typical configuration reaching
262144 timewait sockets, and has no noticeable impact on performance.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/core/sock.c | diffblobblamehistory |