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| author | Mihai Maruseac <mihai.maruseac@gmail.com> | 2012-01-03 23:31:35 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-01-04 16:00:57 -0500 |
| commit | 1d5783030a14d1b6ee763f63c8136e581f48b365 (patch) | |
| tree | c17e33ce9a8dae357a653d2f56621369128a9d36 /tools/perf/scripts/python/sched-migration.py | |
| parent | 48529680dc59061eaa13ea3b1047401612b79600 (diff) | |
ipv6/addrconf: speedup /proc/net/if_inet6 filling
This ensures a linear behaviour when filling /proc/net/if_inet6 thus making
ifconfig run really fast on IPv6 only addresses. In fact, with this patch and
the IPv4 one sent a while ago, ifconfig will run in linear time regardless of
address type.
IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd
dev: use name hash for dev_seq_ops
...
Some statistics (running ifconfig > /dev/null on a different setup):
iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time
----------------------------------------------------------------
6250 | 0.23 s | 0.13 s | 0.11 s
12500 | 0.62 s | 0.28 s | 0.22 s
25000 | 2.91 s | 0.57 s | 0.46 s
50000 | 11.37 s | 1.21 s | 0.94 s
128000 | 86.78 s | 3.05 s | 2.54 s
Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com>
Cc: Daniel Baluta <dbaluta@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions