FC4 possible kernel 2.6.15 issue

[Skunk Worx]

Skunk Worx wrote:
> Under 2.6.14, there was one or two of these 40 ms. calls out of 48,000 
> calls total. Under 2.6.15, we're seeing about 3,000 40 ms. of these 
> calls out of 48,000 calls total.
> 
ugh, that's nasty to read.

This is only over localhost (lo). Two machines running client/server 
2.6.15 over ether are fine, as is 2.6.14.

2.6.14 : about one or two recv() calls out of 48,000 take nearly 40 ms. 
(no big deal--might add 80 ms. to a 20 second operation).

2.6.15 : about 3,000 recv() calls out of 48,000 take nearly 40 ms. (adds 
almost two minutes!)

 From strace :

15:27:04.568800 recv(3, "<?xml version=\"1.0\" encoding=\"UT"..., 555, ) 
= 555 <0.000121>

vs.

15:18:24.515891 recv(3, "<?xml version=\"1.0\" encoding=\"UT"..., 566, ) 
= 566 <0.038414>

--
SW