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Date:      Wed, 31 Jan 2018 07:29:06 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-net@FreeBSD.org
Subject:   [Bug 225535] Delays in TCP connection over Gigabit Ethernet connections; Regression from 6.3-RELEASE
Message-ID:  <bug-225535-2472-MqcgSBJGQv@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-225535-2472@https.bugs.freebsd.org/bugzilla/>
References:  <bug-225535-2472@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225535

--- Comment #18 from Aleksander Derevianko <aeder@list.ru> ---
(In reply to Eugene Grosbein from comment #16)
No, it doesn't write anything to console. Output from the test itself is
redirected to file on disk (SSD 100Gb INTEL SSDSA2BZ100G3 6PB10362). Results
was checked from remote ssh session.

(In reply to Eugene Grosbein from comment #17)
I have switched MSI-X support off in one of the previous attempts to solve =
this
issue. Actually, it doesn't change anything at all in my test case.

-------------------
OK, current results from still-running test:

Computer A1:
root@fspa1:~/clock/new_res # grep times periodic.txt | awk '{print $3 " " $=
4 "
" $6 " " $8 " " $10;}' | sort | uniq -c
212603 send_sync 0 0 0 0
6437 send_sync 0 0 0 1
  10 send_sync 0 0 0 229
4177 send_sync 0 1 0 0
   1 send_sync 0 1 0 1


Computer A2:
root@fspa2:~/clock/new_res # !459
grep times periodic.txt | awk '{print $3 " " $4 " " $6 " " $8 " " $10 ;}' |
sort | uniq -c
122102 send_sync 0 0 0 0
100857 send_sync 0 0 0 1
  47 send_sync 0 0 0 2
  12 send_sync 0 0 0 230
   2 send_sync 0 0 0 231
 170 send_sync 0 1 0 0


I have set kern.timecounter.fast_gettime=3D0 yesteday, on both A1 and A2, a=
nd for
last 12 hours 6 more cases of long delays appear on A1, and 8 on A2 compute=
r.

I will try to repeat this test with=20
console=3D"comconsole,vidconsole"
removed both on A1 and A2 computers.

--=20
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