Date: Wed, 12 Nov 2008 22:55:06 -0800 (PST) From: Won De Erick <won.derick@yahoo.com> To: freebsd-hardware@freebsd.org Subject: IRQ31 and IRQ32 on HPDL585 running FreeBSD 7.0 are consuming HIGH CPU usage Message-ID: <704830.24415.qm@web45815.mail.sp1.yahoo.com>
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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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