> I'll give this a shot later. Can you try with the sendfiled-ttcp?
> http://www.cyberus.ca/~hadi/ttcp-sf.tar.gz
I guess I need to "leverage" some bits for netperf :)
WRT getting data with links that cannot saturate a system, having
something akin to the netperf service demand measure can help. Nothing
terribly fancy - simply a conversion of the CPU utilization and
throughput to a microseconds of CPU to transfer a KB of data.
As for CKO and avoiding copies and such, if past experience is any guide
(ftp://ftp.cup.hp.com/dist/networking/briefs/copyavoid.ps) you get a
very nice synergistic effect once the last "access" of data is removed.
CKO gets you say 10%, avoiding the copy gets you say 10%, but doing both
at the same time gets you 30%.
rick jones
http://www.netperf.org/
-- ftp://ftp.cup.hp.com/dist/networking/misc/rachel/ these opinions are mine, all mine; HP might not want them anyway... :) feel free to email, OR post, but please do NOT do BOTH... my email address is raj in the cup.hp.com domain... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Jan 31 2001 - 21:00:33 EST