Hello,
I've taken a performance hit over localhost between kernels 2.6.14 and
2.6.15 in my client/server application.
I'm trying to gut things down to a simple test case, in the meantime,
this is what I've been discussing with the people at the fedora test list :
This is only over localhost (lo). Two machines running client/server
2.6.15 over ether seem fine, as was 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>
Will watch replies and post more when I know more. Kinda new at this.
--
SW
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