network performance

[Stefan Lambrev]

Greetings,

Results with if_lagg, p4-kernel, dual core, two gigabit netowrk cards:

            input        (lagg0)           output
   packets  errs      bytes    packets  errs      bytes colls
    512412     0   30744720     218164     0   12653686     0
    508765     0   30525900     218720     0   12686514     0
    509797     0   30587820     218001     0   12644522     0
    529478     0   31768680     217203     0   12598412     0
    502720     0   30163200     218808     0   12691154     0

http://89.186.204.158/hwpmc-p4-lagg.txt

================================================
with net.isr2.direct=1

            input        (lagg0)           output
   packets  errs      bytes    packets  errs      bytes colls
         0     0          0          0     0          0     0
    157533     0    9451980     145403     0    8433342     0
    208414     0   12504840     193526     0   11224508     0
    208731     0   12523860     193808     0   11240864     0
    208537     0   12512220     193719     0   11235702     0
    209309     0   12558540     194411     0   11275896     0

no pmcstat, but can provide if needed :)

================================================
with routehack.patch:
netstat -w1 -I em0
            input          (em0)           output
   packets  errs      bytes    packets  errs      bytes colls
    473241 110730   28394460     253427     0   14697722     0
    446691 88556   26801460     236577     0   13721466     0
    440030 86720   26401800     232431     0   13481026     0
    433968 108071   26038080     227498     0   13194854     0

pmcstats - http://89.186.204.158/hwpmc-p4-routehack.txt

================================================
with net.isr2.direct=1 + routehack
netstat -w1 -I em0
            input          (em0)           output
   packets  errs      bytes    packets  errs      bytes colls
    250463 274227   15027780     233526     0   13547856     0
    250596 271527   15035760     233655     0   13552032     0
    251167 286648   15070020     234331     0   13589226     0
    250895 286506   15053700     234067     0   13575654     0
    250954 284616   15057240     234332     0   13593924     0
no pmcstat
================================================
lagg + routehack
netstat -w1 -I lagg0
            input        (lagg0)           output
   packets  errs      bytes    packets  errs      bytes colls
    503065     0   30183900     258149     0   14973512     0
    512911     0   30774660     257825     0   14954546     0
    519503     0   31170180     255413     0   14814476     0

pmcstats - http://89.186.204.158/hwpmc-p4-lagg-routehack.txt
================================================

Unfortunately 89.186.204.158 is down right now, but I hope it will be up 
soon :)

P.S. Have in mind that netstat -w1 -I lagg0 do not report errors (they 
are reported separately for every network card)


-- 

Best Wishes,
Stefan Lambrev
ICQ# 24134177