--- Martin Pool <[EMAIL PROTECTED]> wrote: > On 19 Jul 2003, Dara Hazeghi <[EMAIL PROTECTED]> > wrote: > > Hello, > > > > I want to do some measurements of current distcc > > performance with and without lzo compression. > > Unfortunately I haven't been able to find what > > flag/option does this. Any hints? Thanks, > > DISTCC_HOSTS='localhost otherhost,lzo' > > Mentioned in NEWS, and will be in the manual.
Ah, thanks. Guess I should look harder next time. I did a little testing building gcc's cc1 with DISTCC_HOSTS="draco/3 penguin/1 cygnus/1 where draco = 2x733MHZ P-III, penguin = 333MHZ P-II and cygnus (localhost) = 667MHZ ppc. Machines were connected via 10baseT. I'm guessing that with more machines lzo would make a bigger difference. I was most surprise that the performance hit of ssh was so little. make CC=gcc -j1 real 10m18.664s user 8m11.180s sys 1m16.070s make CC=dcc -j1 real 8m39.949s user 0m32.820s sys 0m22.330s make CC=dcc -j1 (lzo) real 8m5.593s user 0m33.510s sys 0m22.360s make CC=dcc -j1 (ssh) real 10m17.584s user 1m37.000s sys 0m28.440s make CC=dcc -j1 (ssh,lzo) real 9m47.885s user 1m33.850s sys 0m27.600s make CC=dcc -j5 real 3m16.084s user 1m44.180s sys 0m34.360s make CC=dcc -j5 (lzo) real 3m23.241s user 0m34.370s sys 0m22.520s make CC=dcc -j5 (ssh) real 4m12.116s user 1m36.030s sys 0m29.480s make CC=dcc -j5 (ssh,lzo) real 4m55.420s user 1m35.130s sys 0m27.690s Cheers, Dara __ distcc mailing list http://distcc.samba.org/ To unsubscribe or change options: http://lists.samba.org/cgi-bin/mailman/listinfo/distcc
