On Mon, 2010-08-09 at 16:32 -0700, Wyborny, Carolyn wrote:
> > Well, I think flow control isn't the problem. 8-) It can explain
> dropped packets though. Good question on the ITR setting. That
> source certainly doesn't look exactly right. I will find out for sure
> and let you know. I will also do some more checking around on
> possible causes for your symptoms.
Thanks. It's an old version (yay, Debian) so I expect if it's a bug
it'll have already been fixed long ago.
OK, before I give up for today, I just tried again and this time passed
ITR params of 0,0,0,0
[39312146.839789] 0000:15:00.0: Interrupt Throttling Rate (ints/sec)
turned off
[39312146.995702] eth3: (PCI Express:2.5GB/s:Width x4) 00:23:7d:fb:df:1a
etc...
and vmstat now shows much higher interrupts as expected:
procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy
id wa
0 0 60 1291684 164324 347104 0 0 0 0 0 0 1 4 95 0
0 0 60 1291676 164324 347104 0 0 0 0 50976 992 0 16 83 0
0 0 60 1291312 164324 347104 0 0 0 0 62448 1088 0 20 79 0
0 0 60 1291296 164324 347104 0 0 0 0 45185 1015 0 12 87 0
0 0 60 1292040 164324 347104 0 0 0 0 34170 1060 1 10 89 0
But... the key thing is a still rising number of dropped connections :(
eth3 Link encap:Ethernet HWaddr 00:24:81:7b:04:ac
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:4943354 errors:0 dropped:21757 overruns:0 frame:0
I'm losing hair as it is - I could do without this too ;)
gdh
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