Re: "why is my Linux so damn slow?"

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On Sat, Feb 12, 2011 12:27:55 PM -0600, Rick Sewill (rsewill@xxxxxxxxx) wrote:

> Could you show the output of iostat -x 1, 
> not iostat -x 1 | egrep -i 'device|sda'
> please?

Sure, sorry, here you go (this is with Firefox open, right now)


Linux 2.6.35.10-74.fc14.x86_64 (polaris.localdomain)	02/12/2011	_x86_64_	(2 CPU)

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          28.93    0.00    3.23    0.69    0.00   67.15

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.76    12.23    1.72    2.07    96.94   111.76    54.97     0.10   26.58   4.13   1.57
dm-0              0.00     0.00    2.45   13.98    96.65   111.76    12.68     2.18  132.68   0.95   1.57
dm-1              0.00     0.00    0.01    0.00     0.09     0.00     8.00     0.00    5.45   3.18   0.00

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          48.76    0.00    0.50    0.00    0.00   50.75

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-0              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-1              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          16.58    0.00    1.01    0.00    0.00   82.41

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.00     0.00    0.00   19.00     0.00   152.00     8.00     0.01    0.79   0.11   0.20
dm-0              0.00     0.00    0.00   19.00     0.00   152.00     8.00     0.01    0.79   0.11   0.20
dm-1              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           4.46    0.00    0.99    4.95    0.00   89.60

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.00    27.00    0.00    9.00     0.00   272.00    30.22     0.07    7.67   7.67   6.90
dm-0              0.00     0.00    0.00   34.00     0.00   272.00     8.00     0.10    2.82   2.03   6.90
dm-1              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           4.50    0.00    1.00    0.00    0.00   94.50

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-0              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-1              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          12.87    0.00    0.99    0.00    0.00   86.14

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-0              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-1              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          39.30    0.00    0.50    0.00    0.00   60.20

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-0              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
dm-1              0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00
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