Eric Whiting wrote:
>
> Trond Myklebust wrote:
> >
> > > This is not the same test, nor the same results as Jason's, but
> > > here is some more data from bonnie and dd tests.This shows some
> > > write performance difference between 2.4 and 2.6 eric
> >
> > How about vs. 2.4.23?
>
> I'll tetest with 2.6.0-test9 without the mm1 and 4/4 vm enabled.
>
2.6.0-test9 (without mm1 4/4 vm) is even worse than 2.6.0-test6-mm4.
tcpdump shows very slow writes..
12:07:12.380001 172.16.17.176.1525633085 > 172.16.32.181.2049: 1472 write [|nfs]
(frag 33858:1480@0+)
12:07:12.380012 172.16.17.176 > 172.16.32.181: udp (frag 33858:1480@1480+)
12:07:12.380014 172.16.17.176 > 172.16.32.181: udp (frag 33858:1284@2960)
12:07:17.979092 172.16.17.176.1525633085 > 172.16.32.181.2049: 1472 write [|nfs]
(frag 33859:1480@0+)
12:07:17.979102 172.16.17.176 > 172.16.32.181: udp (frag 33859:1480@1480+)
12:07:17.979104 172.16.17.176 > 172.16.32.181: udp (frag 33859:1284@2960)
12:07:18.678981 172.16.17.176.1525633085 > 172.16.32.181.2049: 1472 write [|nfs]
(frag 33860:1480@0+)
12:07:18.678992 172.16.17.176 > 172.16.32.181: udp (frag 33860:1480@1480+)
12:07:18.678994 172.16.17.176 > 172.16.32.181: udp (frag 33860:1284@2960)
12:07:20.078755 172.16.17.176.1525633085 > 172.16.32.181.2049: 1472 write [|nfs]
(frag 33861:1480@0+)
12:07:20.078766 172.16.17.176 > 172.16.32.181: udp (frag 33861:1480@1480+)
12:07:20.078768 172.16.17.176 > 172.16.32.181: udp (frag 33861:1284@2960)
12:07:22.879310 172.16.17.176.1525633085 > 172.16.32.181.2049: 1472 write [|nfs]
(frag 33862:1480@0+)
12:07:22.879321 172.16.17.176 > 172.16.32.181: udp (frag 33862:1480@1480+)
12:07:22.879323 172.16.17.176 > 172.16.32.181: udp (frag 33862:1284@2960)
12:07:28.479388 172.16.17.176.1525633085 > 172.16.32.181.2049: 1472 write [|nfs]
(frag 33863:1480@0+)
12:07:28.479399 172.16.17.176 > 172.16.32.181: udp (frag 33863:1480@1480+)
12:07:28.479400 172.16.17.176 > 172.16.32.181: udp (frag 33863:1284@2960)
12:07:29.179275 172.16.17.176.1525633085 > 172.16.32.181.2049: 1472 write [|nfs]
(frag 33864:1480@0+)
12:07:29.179286 172.16.17.176 > 172.16.32.181: udp (frag 33864:1480@1480+)
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>>>>> " " == Eric Whiting <[email protected]> writes:
> 2.6.0-test9 (without mm1 4/4 vm) is even worse than
> 2.6.0-test6-mm4.
> tcpdump shows very slow writes..
Were you filtering away replies from the server, or were they really
missing? If the latter, then that points towards a problem in the
socket layer or possibly a problem with the device driver for your
NIC.
Cheers,
Trond
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