--- Danial Thom <[EMAIL PROTECTED]> wrote:
> When applying a constant load (v1.5.3-PREVIEW), > usage is categorized differently in UP mode > than > n SMP model. > > In UP Mode > > CPU-0 state: 0.00% user, 0.00% nice, 0.00% > sys, 32.14% intr, 67.86% idle > > In SMP mode: > > CPU-0 state: 0.00% user, 0.00% nice, > 31.27% > sys, 0.00% intr, 68.73% idle > CPU-1 state: 0.00% user, 0.00% nice, > 0.00% > sys, 1.56% intr, 98.44% idle > > Is this to be expected? It seems to me that if > the handoff to the receive queue marks the end > of > interrupt processing in SMP mode (I assume), > that > it also should be measured that way in UP mode. > It would be nice if they were the same so one > could get a better handle on the efficiencies > or > inefficiencies of the SMP processing. > > DT : : Nearly all interrupts are run on cpu 0. This : isn't going to change : until the APIC interrupt routing infrastructure : is rewritten. : : Matt If thats the case, then why is cpustat showing 'intr' usage only on CPU-1? DT __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
