IRQ31 and IRQ32 on HPDL585 running FreeBSD 7.0 are consuming HIGH CPU usage

[Won De Erick]

resending my previous email.
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Hello,

I am conducting a CPU utilization testing with my box(HP DL 585 running FreeBSD 7.0), and come up with the results below:

13 root        1 171 ki31     0K    16K CPU13  d 265:35 100.00% idle: cpu13
18 root        1 171 ki31     0K    16K CPU8   8 265:34 100.00% idle: cpu8
22 root        1 171 ki31     0K    16K CPU4   4 265:34 100.00% idle: cpu4
12 root        1 171 ki31     0K    16K CPU14  e 265:34 100.00% idle: cpu14
23 root        1 171 ki31     0K    16K CPU3   3 265:30 100.00% idle: cpu3
24 root        1 171 ki31     0K    16K CPU2   2 265:21 100.00% idle: cpu2
11 root        1 171 ki31     0K    16K CPU15  f 265:04 100.00% idle: cpu15
14 root        1 171 ki31 0K    16K CPU12  c 264:42 100.00% idle: cpu12
25 root        1 171 ki31     0K    16K CPU1   1 264:29 100.00% idle: cpu1
17 root        1 171 ki31     0K    16K CPU9   9 263:29 100.00% idle: cpu9
21 root        1 171 ki31     0K    16K CPU5   5 261:47 100.00% idle: cpu5
20 root        1 171 ki31     0K    16K CPU6   6 260:56 100.00% idle: cpu6
52 root        1 -68    -     0K    16K CPU11  b 123:53 100.00% irq32: bce1
51 root        1 -68    -     0K    16K CPU10  a 119:28 89.06% irq31: bce0
19 root        1 171 ki31     0K    16K CPU7   7 244:22 85.79% idle: cpu7
26 root        1 171 ki31     0K    16K RUN    0 216:13 54.79% idle: cpu0
27 root        1 -32    -     0K    16K *Giant 0  49:02 48.19% swi4: clock sio
45 root        1 -64    -     0K    16K WAIT   7  21:14 21.29% irq17: uhci0
16 root        1 171 ki31     0K    16K RUN    a 146:07 11.08% idle: cpu10
47 root        1 -64    -     0K    16K WAIT   6   4:39  2.88% irq16: ciss0
15 root        1 171 ki31     0K    16K RUN    b 141:43  1.17% idle: cpu11
30 root        1 -16    -     0K    16K -      f   0:33  0.00% yarrow
61 root        1  20    -     0K    16K syncer e   0:08  0.00% syncer


irq31 and irq32 are consuming high CPU usage, which i think the cause of hard reset.
I read about the MSI interrupt handling for FreeBSD, and I don't know if
there's a way to split the interrupt request for each bce's Rx and Tx,
which means a total of four IRQs, and eventually four cores (or 4 CPU)
for the transactions. With this way, the IDLE processors would be
utilized.

Other ways how I can maximize the use of the IDLE CPUs?

Thanks,

Won
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________________________________
From: Jeremy Chadwick <koitsu at FreeBSD.org>
To: Won De Erick <won.derick at yahoo.com>
Cc: freebsd-hardware at freebsd.org
Sent: Thursday, November 13, 2008 3:26:10 PM
Subject: Re: IRQ31 and IRQ32 on HPDL585 running FreeBSD 7.0 are consuming HIGH CPU usage

On Wed, Nov 12, 2008 at 10:55:06PM -0800, Won De Erick wrote:
> Hello,

Nobody can read the pasted output you've sent.  Your Email client is
hard-wrapping long lines.  Please re-send the data with this feature
disabled.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                      http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |

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