Date: Fri, 28 Jan 2011 18:03:15 +0200 From: Stefan Lambrev <stefan.lambrev@moneybookers.com> To: Slawa Olhovchenkov <slw@zxy.spb.ru> Cc: freebsd-performance@freebsd.org Subject: Re: Interrupt performance Message-ID: <22E77EED-6455-4164-9115-BBD359EC8CA6@moneybookers.com> In-Reply-To: <20110128143355.GD18170@zxy.spb.ru> References: <20110128143355.GD18170@zxy.spb.ru>
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Hi, Do the test with netblast ;) Most perf tools are written badly and for Linux. In our internal test netblast running on freebsd outperform everything else. P.S. - /usr/src/tools/tools/netrate/netblast - we have tested little more expensive card - em/igb and bce. On Jan 28, 2011, at 4:33 PM, Slawa Olhovchenkov wrote: > I test network performance and found some strange result -- on the > same hardware Linux more then 10x used CPU resources for interrupt > processing. > > FreeBSD system utilise 70% CPU (32% idle, 59% interrupt, 9% sys) and > network card generate 14K-18K interrupt per second. > > Linux system utilise 20% CPU (80% idle, 13% system, 3% hiq, 4% siq) > and network card generate 56K interrupt per second. > > I used 'netperf -H host -t UDP_STREAM -l 60 -C -c -- -m 8972 -s > 128K -S 128K' for generate network traffic. > > NIC: > > re0: <RealTek 8169SC/8110SC Single-chip Gigabit Ethernet> port 0x4000-0x40ff mem 0xf0100000-0xf01000ff irq 19 at device 4.0 on pci11 > re0: Chip rev. 0x18000000 > re0: MAC rev. 0x00000000 > miibus0: <MII bus> on re0 > rgephy0: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus0 > > > CPU: > > CPU: Intel(R) Celeron(R) CPU 420 @ 1.60GHz (1596.05-MHz K8-class CPU) > Origin = "GenuineIntel" Id = 0x10661 Family = 6 Model = 16 > Stepping = 1 > Features=0xafebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,PBE> > Features2=0xe31d<SSE3,DTES64,MON,DS_CPL,TM2,SSSE3,CX16,xTPR,PDCM> > AMD Features=0x20100800<SYSCALL,NX,LM> > AMD Features2=0x1<LAHF> > TSC: P-state invariant > > RAM: one DDR2-667 DIMM. > > OS: 8.2-RC2, amd64 > > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freebsd.org" -- Best Wishes, Stefan Lambrev ICQ# 24134177help
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