[distcc] Re: speedup with >2 hosts
SCHMID Stefan
Stefan.Schmid at cern.ch
Tue Apr 6 08:32:00 GMT 2004
Hi Harold,
I excluded the local host, and I got the following for COBRA:
-j10: 495
-j15: 490
-j20: 488
compared to 5 hosts including local host:
COBRA_7_6_2 -j1 1857.332
COBRA_7_6_2 -j2 1039.243
COBRA_7_6_2 -j3 763.843
COBRA_7_6_2 -j4 696.498
COBRA_7_6_2 -j5 609.371
COBRA_7_6_2 -j6 549.385
COBRA_7_6_2 -j7 539.807
COBRA_7_6_2 -j8 514.258
COBRA_7_6_2 -j9 494.551
COBRA_7_6_2 -j10 505.846
COBRA_7_6_2 -j20 462.276
COBRA_7_6_2 -j30 460.046
COBRA_7_6_2 j40 455.205
So excluding local host does not help me with 10 CPU's.
I attached the 1min-uptime plots on the different machines (without local
host): localhost goes up very high, the other hosts hardly exceed 1...
All hosts are the same and have 2 CPU.
So there are three things I don't understand:
- why is the uptime on local host so much bigger?
- i can't hardly find a good formula for which -j-option to use. it seems
that up to j100 its almost "the more the better"...
- why do my execution times vary so much (also for different -j options),
even though i run the same thing over and over again?
Cheers, Stefan
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ALLCOBRAUPTIME2.eps
Type: application/postscript
Size: 125296 bytes
Desc: not available
Url : http://lists.samba.org/archive/distcc/attachments/20040406/ada9ef91/ALLCOBRAUPTIME2.eps
More information about the distcc
mailing list