Vytizeni CPU pri plnem vyuziti 100 Mbit site
Opty
opty77 na gmail.com
Čtvrtek Červenec 27 21:59:35 CEST 2006
On 7/27/06, Michal Kubecek <mike na mk-sys.cz> wrote:
> Doporučil bych se podívat spíš zvlášť na user a zvlášť na zbytek
> (zejména sy, hi, si). Protože za to, co je v user, karta určitě nemůže.
> Pokud si dobře vzpomínám, 20-30 procent zátěže CPU při přenosu plnou
> rychlostí přes 100 Mb/s jsem měl na 700 MHz Athlonu s Realtek 8139, na
> procesorech o frekvenci 1.2 resp. 1.8 GHz s Intel Pro/100 bych očekával
> hodnoty výrazně nižší.
Kolega yanek mi poradil iperf. Vytvoril jsem si maly skript:
(top -b | grep Cpu > netload.log) &
iperf -c 192.168.0.1 -t 60 -F /home/opty/download/ut.iso
killall top
Vysledky:
Cpu(s): 6.2%us, 0.8%sy, 0.1%ni, 91.6%id, 1.1%wa, 0.0%hi, 0.2%si, 0.0%st
Cpu(s): 0.7%us, 3.3%sy, 0.0%ni, 91.4%id, 3.3%wa, 0.0%hi, 1.3%si, 0.0%st
Cpu(s): 0.0%us, 4.3%sy, 0.0%ni, 89.7%id, 1.3%wa, 0.0%hi, 4.7%si, 0.0%st
Cpu(s): 0.7%us, 2.7%sy, 0.0%ni, 77.7%id, 1.3%wa, 0.0%hi, 17.6%si, 0.0%st
Cpu(s): 1.0%us, 3.3%sy, 0.0%ni, 83.4%id, 1.3%wa, 0.0%hi, 11.0%si, 0.0%st
Cpu(s): 0.3%us, 3.0%sy, 0.0%ni, 93.7%id, 2.7%wa, 0.0%hi, 0.3%si, 0.0%st
Cpu(s): 0.7%us, 3.0%sy, 0.0%ni, 94.0%id, 1.7%wa, 0.0%hi, 0.7%si, 0.0%st
Cpu(s): 0.0%us, 4.0%sy, 0.0%ni, 95.3%id, 0.7%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu(s): 0.0%us, 3.7%sy, 0.0%ni, 94.7%id, 1.3%wa, 0.0%hi, 0.3%si, 0.0%st
Cpu(s): 0.3%us, 2.7%sy, 0.0%ni, 95.7%id, 1.0%wa, 0.0%hi, 0.3%si, 0.0%st
Cpu(s): 0.7%us, 3.0%sy, 0.0%ni, 95.0%id, 1.3%wa, 0.0%hi, 0.0%si, 0.0%st
Cpu(s): 0.3%us, 2.3%sy, 0.0%ni, 81.8%id, 1.7%wa, 0.0%hi, 13.9%si, 0.0%st
Cpu(s): 0.0%us, 2.7%sy, 0.0%ni, 88.0%id, 1.0%wa, 0.0%hi, 8.3%si, 0.0%st
Cpu(s): 0.7%us, 3.7%sy, 0.0%ni, 91.0%id, 3.3%wa, 0.0%hi, 1.3%si, 0.0%st
Cpu(s): 0.3%us, 2.7%sy, 0.0%ni, 94.0%id, 2.7%wa, 0.0%hi, 0.3%si, 0.0%st
Cpu(s): 0.3%us, 3.3%sy, 0.0%ni, 93.0%id, 1.7%wa, 0.0%hi, 1.7%si, 0.0%st
Cpu(s): 0.3%us, 3.7%sy, 0.0%ni, 92.0%id, 1.0%wa, 0.0%hi, 3.0%si, 0.0%st
Cpu(s): 1.0%us, 2.7%sy, 0.0%ni, 79.4%id, 4.7%wa, 0.0%hi, 12.3%si, 0.0%st
Cpu(s): 0.7%us, 2.0%sy, 0.0%ni, 82.1%id, 1.7%wa, 0.0%hi, 13.6%si, 0.0%st
To uz je lepsi, ze. :-D Takze spatna metodika...
Opty
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