Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 05 Feb 2016 15:38:00 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-net@FreeBSD.org
Subject:   [Bug 206932] Realtek 8111 card stops responding under high load in netmap mode
Message-ID:  <bug-206932-2472-fhLsvLZRIZ@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-206932-2472@https.bugs.freebsd.org/bugzilla/>
References:  <bug-206932-2472@https.bugs.freebsd.org/bugzilla/>

next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206932

--- Comment #2 from Olivier - interfaSys s=C3=A0rl <software-freebsd@interf=
asys.ch> ---
Setting re0 to use a MTU of 9000 and the connection stays alive. Instead of
timing out, the packet rate drops drastically once and things go back to
normal.=20
The main difference in netstat is that the mbuf clusters are split between
standard and jumbo frames

```
768/2787/3555 mbufs in use (current/cache/total)
256/1524/1780/500200 mbuf clusters in use (current/cache/total/max)
256/1515 mbuf+clusters out of packet secondary zone in use (current/cache)
0/46/46/250099 4k (page size) jumbo clusters in use (current/cache/total/ma=
x)
256/65/321/74103 9k jumbo clusters in use (current/cache/total/max)
0/0/0/41683 16k jumbo clusters in use (current/cache/total/max)
3008K/4513K/7521K bytes allocated to network (current/cache/total)
0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
0/0/0 requests for mbufs delayed (mbufs/clusters/mbuf+clusters)
0/0/0 requests for jumbo clusters delayed (4k/9k/16k)
0/0/0 requests for jumbo clusters denied (4k/9k/16k)
0 requests for sfbufs denied
0 requests for sfbufs delayed
0 requests for I/O initiated by sendfile
```

The rate in vmstat keeps rising, but that doesn't seem to be a problem

```
interrupt                          total       rate
irq16: sdhci_pci0                      1          0
cpu0:timer                       3008083       1113
irq256: ahci0                      10125          3
irq257: xhci0                      11363          4
irq258: hdac0                          3          0
irq259: re0                     13105929       4850
irq260: re1                       101440         37
cpu2:timer                       1095578        405
cpu1:timer                       1083354        400
cpu3:timer                       1123144        415
Total                           19539020       7231
```

--=20
You are receiving this mail because:
You are the assignee for the bug.=



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-206932-2472-fhLsvLZRIZ>