> kernel Pipe AF/Unix
> ----------------------------- ------- -------
> 2.4.19-pre7-jam6 29.513 42.369
> 2.4.19-pre8-jam2 7.697 15.274
> 2.4.19-pre8-jam2-nowuos 7.739 14.929
> (last line says that wake-up-sync is not responsible...)
> Main changes between first two were irqbalance and ide6->ide10.
The system is scsi only. pre7-jam6 and pre8-jam2 .config's were
identical.
> Could you try latest -rc1-aa2 ? It includes also irqbalance,
Based on Andrea'a diff logs, irqbalance appeared in 2.4.19pre10aa3.
There are small differences between the pre10-jam2 and aa irqbalance
patches. One new datapoint with pre10-jam3:
*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
kernel Pipe AF/Unix
----------------------------- ------- -------
2.4.19-pre10-jam2 7.877 16.699
2.4.19-pre10-jam3 33.133 66.825
2.4.19-pre10-aa2 34.208 62.732
2.4.19-pre10-aa4 33.941 70.216
2.4.19-rc1-aa1-1g-nio 34.989 52.704
A config difference between pre10-jam2 and pre10-jam3 is:
CONFIG_X86_SFENCE=y # pre10-jam2
pre10-jam2 was compiled with -Os and pre10-jam3 with -O2.
> Out of interest, is that a P4/Xeon?
Quad P3/Xeon 700 mhz with 1MB cache.
-- Randy Hron http://home.earthlink.net/~rwhron/kernel/bigbox.html- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/