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| author | Eric Dumazet <dada1@cosmosbay.com> | 2008-01-18 04:30:21 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-20 20:31:39 -0800 |
| commit | 8d3f099abe25c21670cb5728178a1f286952782d (patch) | |
| tree | 074339fd500a3af4f89cab67c0a90bae81bc93a7 /net/ipv4/tcp_hybla.c | |
| parent | 49d85c502ec5e6d5998c1a04394c5b24e8f7d32d (diff) | |
| download | linux-8d3f099abe25c21670cb5728178a1f286952782d.tar.bz2 | |
[IPV4] FIB_HASH : Avoid unecessary loop in fn_hash_dump_zone()
I noticed "ip route list" was slower than "cat /proc/net/route" on a
machine with a full Internet routing table (214392 entries : Special
thanks to Robert ;) )
This is similar to problem reported in commit
d8c9283089287341c85a0a69de32c2287a990e71 ("[IPV4] ROUTE: ip_rt_dump()
is unecessary slow")
Fix is to avoid scanning the begining of fz_hash table, but directly
seek to the right offset.
Before patch :
time ip route >/tmp/ROUTE
real 0m1.285s
user 0m0.712s
sys 0m0.436s
After patch
# time ip route >/tmp/ROUTE
real 0m0.835s
user 0m0.692s
sys 0m0.124s
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_hybla.c')
0 files changed, 0 insertions, 0 deletions