Re: [perf-discuss] cpu migration questions and postgresql

2008-01-17 Thread Eric Saxe
It's likely that kernel service threads (which show up as "sched") are preempting postgresql...at which point the runnable postgresql goes back on the run queue to wait, at which point another idle CPU steals it so that it can run immediately. With this happening often things can tend to migrat

Re: [perf-discuss] Question about interfaces available after

2008-01-17 Thread Sylvain Quartier
Hi, i'm considering finding a way integrate discovering, monitoring and reporting on VNIC and flows from the crossbow project. My prefered protocols is snmp with MIBs (very used in network world) but i'm interested as well in using DTrace. Do you know if MIBs or DTrace scripts exists for crossbow