-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, On Thursday 25 December 2003 09:43, Kabelweb wrote: > Hi! > > > So I played a bit with the DOWNLINK value and found out that down to and > > including 555 no packets are dropped even if a download fully saturates > > the link while 554 already drastically caps the download to ~65 kbytes/s, > > and there are packets being dropped: > > It seems that your setup suffers from timer inaccuracy. > This topic has been dealt with some times on this list. > > Read (for example) this thread: > http://www.mail-archive.com/lartc@xxxxxxxxxxxxxxx/msg02795.html > [snip] > The solution (as mentioned in the thread above) is to either change the HZ > value to for example 1024 (you don't have to do this by manually patching > your kernel source because your gentoo kernel has a patch applied which > lets you specify the HZ value from kernel config - I think its somewhere in > "Processor type and features") or to change PSCHED_CLOCK_SOURCE to > PSCHED_CPU in your /usr/src/linux/include/net/pkt_sched.h (which I > personally had some problems with in the past - can't remember exactly > though). > > I hope this helps - let us know... Thanks Andreas, this helped perfectly. I used the latter approach by editing pkt_sched.h to use the rtdsc as I was a little intimidated by the help text for the HZ option mentioning not to use values larger than half the CPU's clock in MHz. And as this is only a PII/266 I thought gentoo's default of 200 was stressing that enough already... Regards, - -Malte -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/7pTfVDF3RdLzx4cRAoObAJ9Ek0pVzNy5hh/r85W+qbeNaTecOQCg0qCw CtBhWYt6k32swyujNpRtNBo= =fmYt -----END PGP SIGNATURE----- _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
