* Satoru Takeuchi <[EMAIL PROTECTED]> wrote: > You are welcome. I can use larger machine by chance, and also tested > there just now. > > Test environment > ================ > > - kernel: 2.6.21-rc6-CFS > - run time: 300 secs > - # of CPU: 12 > - # of processes: 200 or 2400 > > Result > =================================== > > +----------+-----------+-------+------+------+--------+ > | # of | # of | avg | max | min | stdev | > | CPUs | processes | | | | | > +----------+-----------+-------+------+------+--------+ > | | 200 | 2250 | 2348 | 2204 | 64 | > | 12(ia64) +-----------+-------+------+------+--------+ > | | 2400 | 187.5 | 197 | 176 | 4.3 | > +----------+-----------+-------+------+------+--------+ > > Looks like good too.
yeah. The spread between min and max is 11%, the spread between stddev and avg is 2.2%, which is quite OK for so many tasks. > BTW, I've a question. Actually this problem is fixed on CFS and DS. > However they are mostly written from scratch and doeesn't suitable for > stable version, for example 2.6.20.X. Can your other patch be > compromise for stable version? Although that patch is not perfect, but > I think it's preferable to leave it alone. i'm afraid that small patch is not suitable for a general purpose Linux release (it hits interactivity way too much) - that's what this years-long struggle was about. But you could apply it to a special server-centric kernel. Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/