> On May 3, 2016, at 10:16 AM, Stefan <[email protected]> wrote: > > Dear List, > > on our machines with about 40 vservers we observe low network > throughput. It seems to scale inversely with the number of vms on the > respective node: > > # vms bw (Mbps) > ----- --------- > 37 60 > 24 94 > 18 174 > 12 608 > 5 933 > 2 934 > 1 935 > > The measurements were obtained using iperf from a different physical > machine. It has been suggested that the slowdown may be due to > interrupt 51 being clamped to CPU 12: > > # echo '::interrupts -d' | mdb -k > IRQ Vect IPL Bus Trg Type CPU Share APIC/INT# Driver Name(s) > : > 49 0x40 5 PCI Edg MSI 8 1 - mpt#0 > 50 0x60 6 PCI Edg MSI 11 1 - e1000g#0 > 51 0x61 6 PCI Edg MSI 12 1 - e1000g#1 > 160 0xa0 0 Edg IPI all 0 - poke_cpu > : > > If this is the cause of the problem we would like to deliver the > interrupts to all of the cpus. How do we achieve this with smartos?
To observe CPU usage by driver by processor, use intrstat. -- richard > > Kind Regards, > Stefan > ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
