Here it is:-
-bash-3.2$ cat fork.output
# bin/../bin-i86pc/fork -E -C 200 -L -S -W -N fork_100 -B 100 -C 100
prc thr usecs/call samples errors cnt/samp
fork_100 1 1 28262.30682 101 0 100
#
# STATISTICS usecs/call (raw) usecs/call (outliers removed)
# min
19303.53724 24279.60363
# max 35682.69021 35682.69021
# mean 28843.85537 28938.31396
# median 28262.30682 28262.30682
# stddev 2480.86228
2301.52907
# standard error 245.64197 229.01070
# 99% confidence level 571.36322 532.67889
# skew 0.58140 1.31861
# kurtosis 2.43780 1.26418
# time correlation
-11.92490 -17.95016
#
# elasped time 306.42171
# number of samples 101
# number of outliers 1
# getnsecs overhead 238
#
# DISTRIBUTION
# counts usecs/call
means
# 1 24000.00000 |* 24279.60363
# 0 24400.00000 | -
# 0 24800.00000
| -
# 1 25200.00000 |* 25530.67435
# 1 25600.00000 |*
25864.52269
# 3 26000.00000 |***** 26215.47420
# 1 26400.00000 |* 26787.31801
# 6 26800.00000 |**********
26978.43441
# 10 27200.00000 |***************** 27416.17151
# 18 27600.00000 |******************************** 27814.69021
# 14 28000.00000 |************************ 28211.51786
# 14 28400.00000 |************************ 28605.96807
# 9 28800.00000
|**************** 28956.49312
# 0 29200.00000 | -
# 2 29600.00000 |*** 29739.01901
# 2 30000.00000
|*** 30155.75809
# 1 30400.00000 |* 30736.94535
# 1 30800.00000 |* 30986.33089
# 2
31200.00000 |*** 31505.32102
# 4 31600.00000 |******* 31914.32562
# 0 32000.00000 |
-
# 1 32400.00000 |* 32642.88572
# 1 32800.00000 |* 32818.75299
# 1 33200.00000
|* 33557.53675
# 2 33600.00000 |*** 33778.43354
#
# 6 > 95% |********** 35025.72746
#
# mean of 95%
28553.84574
# 95th %ile 34268.24321
--- On Mon, 5/5/08, Juergen Keil <[EMAIL PROTECTED]> wrote:
From: Juergen Keil <[EMAIL PROTECTED]>
Subject: Re: [xen-discuss] How to install Solaris 0508 HVM DomU at SNV87
To: [EMAIL PROTECTED]
Cc: [email protected]
Date: Monday, May 5, 2008, 12:43 PM
> We are done on SNV87 HVM DomU.
> Service ppd-cache-update now online.
> I gonna wait for completition on S10U5 HVM DomU
Can you please try to run the fork_100 test from
the libMicro-0.4.0 benchmark on that SNV87 HVM DomU?
The source of the benchmark is available for download here:
http://opensolaris.org/os/project/libmicro/
http://opensolaris.org/os/project/libmicro/files/libmicro-0.4.0.tar.gz
% wget http://opensolaris.org/os/project/libmicro/files/libmicro-0.4.0.tar.gz
% gunzip< libmicro-0.4.0.tar.gz |tar xf -
% cd libMicro-0.4.0
% make
% bin/fork -E -C 200 -L -S -W -N fork_100 -B 100 -C 100 > /tmp/fork.output
Running: fork_100 for 4.77470 seconds
% cat /tmp/fork.output
# bin/../bin-i86pc/fork -E -C 200 -L -S -W -N fork_100 -B 100 -C 100
prc thr usecs/call samples errors cnt/samp
fork_100 1 1 280.76964 100 0 100
#
# STATISTICS usecs/call (raw) usecs/call (outliers removed)
# min 237.29929 237.29929
# max 949.35702 424.32036
# mean 306.45514 298.44325
# median 281.65932
280.76964
# stddev 79.72480 44.62684
# standard error 7.89393 4.46268
# 99% confidence level 18.36128 10.38020
# skew 5.29799 1.00536
# kurtosis 38.85951 0.12177
# time correlation -1.47891 -1.07615
#
# elasped time 4.76910
# number of samples 100
# number of outliers 2
# getnsecs overhead 399
#
# DISTRIBUTION
# counts usecs/call means
# 1 234.00000 |** 237.29929
# 7 240.00000 |************** 242.43814
# 2 246.00000 |**** 249.26708
# 1 252.00000 |**
256.03853
# 3 258.00000 |****** 262.67013
# 16 264.00000 |******************************** 267.68925
# 10 270.00000 |******************** 273.27753
# 12 276.00000 |************************ 279.59795
# 7 282.00000 |************** 284.16094
# 5 288.00000 |********** 290.65786
# 2 294.00000 |**** 297.36328
# 3 300.00000 |****** 302.75731
# 1 306.00000 |** 309.20215
# 2 312.00000 |**** 315.67402
# 1 318.00000 |** 318.00967
#
1 324.00000 |** 326.74916
# 3 330.00000 |****** 331.74546
# 3 336.00000 |****** 340.82672
# 3 342.00000 |****** 342.74536
# 5 348.00000 |********** 350.05268
# 2 354.00000 |**** 357.77666
# 0 360.00000 | -
# 1 366.00000 |** 369.75543
# 0 372.00000 | -
# 1 378.00000 |** 383.21981
# 3 384.00000 |****** 386.35274
#
# 5 > 95% |**********
408.37425
#
# mean of 95% 292.65741
# 95th %ile 397.26077
On an "AMD Athlon(tm) 64 X2 Dual Core Processor 6400+" /
metal / snv_89, the fork benchmark runs for 4.77 seconds
(that's the output included above). Under xVM / Xen
and on current Intel / AMD processors it should complete
in 20-30 seconds.
I've seen cases where the fork_100 benchmark used > 700 seconds,
when I ran it in a 32-bit PV domU.
--------------------------------------------------------------------
I do have a workaround for this xen / opensolaris performance
problem[*]; it's a modified /usr/lib/libc/libc_hwcap3.so.1
shared C library (see the attachment). It was compiled from
current opensolaris source (post snv_89), but seems to work OK
under snv_81. Under xVM you should find a lofs mount like this
in "df -h" output:
# df -h
Filesystem
size used avail capacity Mounted on
...
/usr/lib/libc/libc_hwcap3.so.1
6.1G 4.1G 1.9G 69% /lib/libc.so.1
...
Now try this in your domU:
# gunzip < libc_hwcap3.tar.gz | ( cd /tmp; tar xfv - )
x libc_hwcap3.so.1, 1646444 bytes, 3216 tape blocks
# mount -O -F lofs /tmp/libc_hwcap3.so.1 /lib/libc.so.1
Now run the fork_100 benchmark. It might run much faster.
And after "umount /lib/libc.so.1", the fork_100 should become slow.
===
[*] http://www.opensolaris.org/jive/thread.jspa?threadID=58717&tstart=0 |
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