| commit | f04565ddf52e401880f8ba51de0dff8ba51c99fd | |
| author | Mihai Maruseac <mihai.maruseac@gmail.com> | |
| Thu, 20 Oct 2011 20:45:10 +0000 (20 20:45 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Fri, 21 Oct 2011 06:54:38 +0000 (21 02:54 -0400) | ||
| tree | 720ebd86cb3012319023389a54ae7152073d6bdb | treesnapshot (tar.gz zip) |
| parent | e09eff7fc1c6f011f7bdb304e10d2ceef08c88ab | commitdiff |
dev: use name hash for dev_seq_ops
Instead of using the dev->next chain and trying to resync at each call to
dev_seq_start, use the name hash, keeping the bucket and the offset in
seq->private field.
Tests revealed the following results for ifconfig > /dev/null
* 1000 interfaces:
* 0.114s without patch
* 0.089s with patch
* 3000 interfaces:
* 0.489s without patch
* 0.110s with patch
* 5000 interfaces:
* 1.363s without patch
* 0.250s with patch
* 128000 interfaces (other setup):
* ~100s without patch
* ~30s with patch
Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of using the dev->next chain and trying to resync at each call to
dev_seq_start, use the name hash, keeping the bucket and the offset in
seq->private field.
Tests revealed the following results for ifconfig > /dev/null
* 1000 interfaces:
* 0.114s without patch
* 0.089s with patch
* 3000 interfaces:
* 0.489s without patch
* 0.110s with patch
* 5000 interfaces:
* 1.363s without patch
* 0.250s with patch
* 128000 interfaces (other setup):
* ~100s without patch
* ~30s with patch
Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/core/dev.c | diffblobblamehistory |