On 7/29/06, Jesper Juhl <[email protected]> wrote:
On 27/07/06, Brian D. McGrew <[email protected]> wrote:
> Good morning all!
> reasonable configuration to get my builds down under five minutes or so?
I got a (moderately old) Sun V20z with 2 Opteron 2.2 GHz with 7G ram.
My numbers are comparable with yours. (I don't know if they are on the
lower side for such a h/w configuration)
My box builds my ordinary .config (attached) in under 5min :
$ time make -j3
real 3m58.047s
user 4m54.574s
sys 1m24.202s
Mine is (with your configuration file, src updated with latest linus' tree,
[om@turyxsrv /home/src/linux-2.6]$ time make -j4
...snipped...
real 4m12.316s
user 5m12.600s
sys 0m37.742s
With stdout redirected, (It helps to save a minute or so )
[om@turyxsrv /home/src/linux-2.6]$ time make -j4 >>time.txt
real 3m23.504s
user 5m14.776s
sys 0m38.138s
Here are some more numbers for you to compare to your box :
allnoconfig :
$ make clean
$ make allnoconfig
$ time make -j3
real 0m54.544s
user 1m2.113s
sys 0m20.781s
[om@turyxsrv /home/src/linux-2.6]$ time make -j4 > allnoconfigtime.txt
real 0m43.399s
user 1m6.256s
sys 0m9.389s
allmodconfig :
$ make clean
$ make allmodconfig
$ time make -j3
real 28m49.748s
user 35m3.212s
sys 10m43.633s
[om@turyxsrv /home/src/linux-2.6]$ time make -j4 > allmodconfigtime.txt
real 39m59.100s
user 34m16.857s
sys 4m36.697s
This box uses a Athlon64 X2 4400+ CPU, has 2GB RAM and a single
Ultra160 SCSI disk.
[root@turyxsrv ~]# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 2676 MB in 2.00 seconds = 1338.79 MB/sec
Timing buffered disk reads: 184 MB in 3.02 seconds = 61.00 MB/sec
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