I was wrong. Kernel panics with "splassert". So bug report I just sent is somehow connected with interruptions.
15.11.2013, 00:44, "Alexander Pakhomov" <[email protected]>: > By the way "boot sync" in ddb cause kernel panic (both mp and sp). Will send > next bug report in bugs@. Maybe this is connected. I doubt, though. > > 15.11.2013, 00:37, "Alexander Pakhomov" <[email protected]>: > >> 14.11.2013, 17:20, "Alexandre Ratchov" <[email protected]>: >>> On Thu, Nov 14, 2013 at 01:16:41PM +0400, Alexander Pakhomov wrote: >>>> Hi. >>>> I discovered high CPU0 interruptions load (amd64) in various cases. >>>> wifi (athn, urtwn): up to 100% at 2 MB/s download. Usually 50%. Grows >>>> faster >>>> then linear with net load. Sometimes system freezes for about a minute. >>>> Web speed tests consume significantly less CPU then >>>> wget/firefox/ktorrent download. I >>>> don't know why. >>>> Dmitrij D. Czarkoff has 6% interruptions load during samba download >>>> (1.3 MB/s, urtwn). >>>> I sent bug report but by now it's unreplied. >>>> >>>> SSD write (dd if=/dev/zero of=... bs=1M): 10% unencrypted, 50% >>>> encrypted (softraid0). >>>> Disk read doesn't load cause interruptions load. >>>> USB stick dd: essentially no interruptions load (2 MB/s) >>>> >>>> 1) What interruptions load should be considered normal? I used to >>>> think even 10% is too high. >>> yes, though it depends on the workload >>>> I want to investigate the problem and profile interruption handlers. >>>> 2) Is there any OpenBSD kernel profiling support? High resolution >>>> clocks, tick counters. >>> do you observe the same problem with the GENERIC kernel? >> Mostly GENERIC.MP >> GENERIC.SP has high interrupts load with wifi but OK with disk. >> Interesting that SP has higher encrypted write speed. >> Interrupts load for WiFi varies a lot. >> dd unenc sp: >> interrupt total rate >> irq0/clock 17944 102 >> irq144/acpi0 35 0 >> irq96/inteldrm0 39 0 >> irq96/ehci0 47 0 >> irq176/azalia0 1 0 >> irq101/ehci1 26 0 >> irq102/ahci0 437730 2501 >> irq145/pckbc0 587 3 >> Total 456409 2608 >> sys 17% int 9% >> 164 MB/s >> >> dd_unenc_mp >> interrupt total rate >> irq0/clock 114430 401 >> irq0/ipi 6786 23 >> irq144/acpi0 57 0 >> irq96/inteldrm0 38 0 >> irq96/ehci0 535 1 >> irq176/azalia0 1 0 >> irq101/ehci1 26 0 >> irq102/ahci0 274667 963 >> irq145/pckbc0 643 2 >> Total 397183 1393 >> 30 sys 50 int >> 200 MB/s >> >> dd_enc_sp >> interrupt total rate >> irq0/clock 33068 101 >> irq144/acpi0 67 0 >> irq96/inteldrm0 55 0 >> irq96/ehci0 47 0 >> irq176/azalia0 1 0 >> irq101/ehci1 26 0 >> irq102/ahci0 470959 1440 >> irq145/pckbc0 1535 4 >> Total 505758 1546 >> 100 sys 0 inter >> 54 MB/s >> >> dd_enc_mp >> interrupt total rate >> irq0/clock 176891 400 >> irq0/ipi 29242 66 >> irq144/acpi0 89 0 >> irq96/inteldrm0 72 0 >> irq96/ehci0 535 1 >> irq176/azalia0 1 0 >> irq101/ehci1 26 0 >> irq102/ahci0 515102 1165 >> irq145/pckbc0 1496 3 >> Total 723454 1636 >> 60x4 sys 80 int >> 42 MB/s >> >> wget_athn_sp >> interrupt total rate >> irq0/clock 139244 100 >> irq144/acpi0 279 0 >> irq96/inteldrm0 156 0 >> irq96/ehci0 323243 232 >> irq176/azalia0 1 0 >> irq101/ehci1 26 0 >> irq102/ahci0 475704 342 >> irq145/pckbc0 3465 2 >> Total 942118 678 >> 40% >> interrupt total rate >> irq0/clock 329629 399 >> irq0/ipi 78886 95 >> irq144/acpi0 165 0 >> irq96/inteldrm0 134 0 >> irq96/ehci0 133755 162 >> irq176/azalia0 1 0 >> irq101/ehci1 26 0 >> irq102/ahci0 516208 625 >> irq145/pckbc0 2618 3 >> Total 1061422 1286 >> 40 int >> >> wget_urtwn_sp >> interrupt total rate >> irq0/clock 47794 100 >> irq144/acpi0 95 0 >> irq96/inteldrm0 87 0 >> irq96/ehci0 59300 125 >> irq176/azalia0 1 0 >> irq101/ehci1 26 0 >> irq102/ahci0 475109 1002 >> irq145/pckbc0 2244 4 >> Total 584656 1233 >> 40% >> >> wget_urtwn0_mp >> interrupt total rate >> irq0/clock 293365 399 >> irq0/ipi 56036 76 >> irq144/acpi0 147 0 >> irq96/inteldrm0 109 0 >> irq96/ehci0 90325 123 >> irq176/azalia0 1 0 >> irq101/ehci1 26 0 >> irq102/ahci0 516167 703 >> irq145/pckbc0 2347 3 >> Total 958523 1305 >> 40% int >> >> dmesg (was in bugs@): >> OpenBSD 5.4 (GENERIC.MP) #41: Tue Jul 30 15:30:02 MDT 2013 >> [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP >> real mem = 17045254144 (16255MB) >> avail mem = 16583786496 (15815MB) >> mainbus0 at root >> bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xdae23000 (66 entries) >> bios0: vendor LENOVO version "8DET46WW (1.16 )" date 05/18/2011 >> bios0: LENOVO 4290RB3 >> acpi0 at bios0: rev 2 >> acpi0: sleep states S0 S3 S4 S5 >> acpi0: tables DSDT FACP SLIC SSDT SSDT SSDT HPET APIC MCFG ECDT ASF! SSDT >> SSDT UEFI UEFI UEFI >> acpi0: wakeup devices LID_(S3) SLPB(S3) IGBE(S4) EXP4(S4) EXP7(S4) EHC1(S3) >> EHC2(S3) HDEF(S4) >> acpitimer0 at acpi0: 3579545 Hz, 24 bits >> acpihpet0 at acpi0: 14318179 Hz >> acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat >> cpu0 at mainbus0: apid 0 (boot processor) >> cpu0: Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz, 2093.49 MHz >> cpu0: >> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC >> cpu0: 256KB 64b/line 8-way L2 cache >> cpu0: smt 0, core 0, package 0 >> cpu0: apic clock running at 99MHz >> cpu1 at mainbus0: apid 1 (application processor) >> cpu1: Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz, 2093.20 MHz >> cpu1: >> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC >> cpu1: 256KB 64b/line 8-way L2 cache >> cpu1: smt 1, core 0, package 0 >> cpu2 at mainbus0: apid 2 (application processor) >> cpu2: Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz, 2093.20 MHz >> cpu2: >> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC >> cpu2: 256KB 64b/line 8-way L2 cache >> cpu2: smt 0, core 1, package 0 >> cpu3 at mainbus0: apid 3 (application processor) >> cpu3: Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz, 2093.20 MHz >> cpu3: >> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC >> cpu3: 256KB 64b/line 8-way L2 cache >> cpu3: smt 1, core 1, package 0 >> ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins >> acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63 >> acpiec0 at acpi0 >> acpiprt0 at acpi0: bus 0 (PCI0) >> acpiprt1 at acpi0: bus -1 (PEG_) >> acpiprt2 at acpi0: bus 2 (EXP1) >> acpiprt3 at acpi0: bus 3 (EXP2) >> acpiprt4 at acpi0: bus 5 (EXP4) >> acpiprt5 at acpi0: bus 13 (EXP5) >> acpiprt6 at acpi0: bus -1 (EXP7) >> acpicpu0 at acpi0: C3, C1, PSS >> acpicpu1 at acpi0: C3, C1, PSS >> acpicpu2 at acpi0: C3, C1, PSS >> acpicpu3 at acpi0: C3, C1, PSS >> acpipwrres0 at acpi0: PUBS >> acpitz0 at acpi0: critical temperature is 99 degC >> acpibtn0 at acpi0: LID_ >> acpibtn1 at acpi0: SLPB >> acpibat0 at acpi0: BAT0 model "42T4865" serial 30832 type LION oem "LGC" >> acpibat1 at acpi0: BAT1 not present >> acpiac0 at acpi0: AC unit online >> acpithinkpad0 at acpi0 >> acpidock0 at acpi0: GDCK not docked (0) >> cpu0: Enhanced SpeedStep 2093 MHz: speeds: 2100, 2000, 1900, 1800, 1700, >> 1600, 1500, 1400, 1300, 1200, 1100, 1000, 900, 800 MHz >> pci0 at mainbus0 bus 0 >> pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09 >> vga1 at pci0 dev 2 function 0 "Intel HD Graphics 3000" rev 0x09 >> intagp0 at vga1 >> agp0 at intagp0: aperture at 0xe0000000, size 0x10000000 >> inteldrm0 at vga1 >> drm0 at inteldrm0 >> inteldrm0: 1366x768 >> wsdisplay0 at vga1 mux 1: console (std, vt100 emulation) >> wsdisplay0: screen 1-5 added (std, vt100 emulation) >> "Intel 6 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured >> em0 at pci0 dev 25 function 0 "Intel 82579LM" rev 0x04: msi, address >> f0:de:f1:6d:75:bf >> ehci0 at pci0 dev 26 function 0 "Intel 6 Series USB" rev 0x04: apic 2 int 16 >> usb0 at ehci0: USB revision 2.0 >> uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 >> azalia0 at pci0 dev 27 function 0 "Intel 6 Series HD Audio" rev 0x04: msi >> azalia0: codecs: Conexant/0x506e, Intel/0x2805, using Conexant/0x506e >> audio0 at azalia0 >> ppb0 at pci0 dev 28 function 0 "Intel 6 Series PCIE" rev 0xb4: msi >> pci1 at ppb0 bus 2 >> ppb1 at pci0 dev 28 function 1 "Intel 6 Series PCIE" rev 0xb4: msi >> pci2 at ppb1 bus 3 >> "Realtek 8188CE" rev 0x01 at pci2 dev 0 function 0 not configured >> ppb2 at pci0 dev 28 function 3 "Intel 6 Series PCIE" rev 0xb4: msi >> pci3 at ppb2 bus 5 >> ppb3 at pci0 dev 28 function 4 "Intel 6 Series PCIE" rev 0xb4: msi >> pci4 at ppb3 bus 13 >> sdhc0 at pci4 dev 0 function 0 "Ricoh 5U822 SD/MMC" rev 0x07: apic 2 int 16 >> sdmmc0 at sdhc0 >> ehci1 at pci0 dev 29 function 0 "Intel 6 Series USB" rev 0x04: apic 2 int 23 >> usb1 at ehci1: USB revision 2.0 >> uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1 >> pcib0 at pci0 dev 31 function 0 "Intel QM67 LPC" rev 0x04 >> ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x04: msi, AHCI >> 1.3 >> scsibus0 at ahci0: 32 targets >> sd0 at scsibus0 targ 0 lun 0: <ATA, INTEL SSDSC2BW24, DC02> SCSI3 0/direct >> fixed naa.50015178f366188d >> sd0: 228936MB, 512 bytes/sector, 468862128 sectors, thin >> ichiic0 at pci0 dev 31 function 3 "Intel 6 Series SMBus" rev 0x04: apic 2 >> int 18 >> iic0 at ichiic0 >> spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-10600 SO-DIMM >> spdmem1 at iic0 addr 0x51: 8GB DDR3 SDRAM PC3-10600 SO-DIMM >> isa0 at pcib0 >> isadma0 at isa0 >> pckbc0 at isa0 port 0x60/5 >> pckbd0 at pckbc0 (kbd slot) >> pckbc0: using irq 1 for kbd slot >> wskbd0 at pckbd0: console keyboard, using wsdisplay0 >> pms0 at pckbc0 (aux slot) >> pckbc0: using irq 12 for aux slot >> wsmouse0 at pms0 mux 0 >> wsmouse1 at pms0 mux 0 >> pms0: Synaptics clickpad, firmware 8.0 >> pcppi0 at isa0 port 0x61 >> spkr0 at pcppi0 >> aps0 at isa0 port 0x1600/31 >> mtrr: Pentium Pro MTRR support >> uhub2 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2 >> uvideo0 at uhub2 port 6 configuration 1 interface 0 "Chicony Electronics >> Co., Ltd. Integrated Camera" rev 2.00/8.54 addr 3 >> video0 at uvideo0 >> uhub3 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2 >> vscsi0 at root >> scsibus1 at vscsi0: 256 targets >> softraid0 at root >> scsibus2 at softraid0: 256 targets >> root on sd0a (5767b22a20b432d3.a) swap on sd0b dump on sd0b >> urtwn0 at uhub2 port 2 "802.11n USB WLAN" rev 2.00/2.00 addr 4 >> urtwn0: MAC/BB RTL8192CU, RF 6052 2T2R, address f8:1a:67:22:b3:89 >> sd1 at scsibus2 targ 1 lun 0: <OPENBSD, SR CRYPTO, 005> SCSI2 0/direct fixed >> sd1: 131596MB, 512 bytes/sector, 269510505 sectors >> urtwn0 detached >> athn0 at uhub2 port 2 "ATHEROS USB2.0 WLAN" rev 2.00/1.08 addr 4 >> athn0: AR9271 rev 1 (1T1R), ROM rev 13, address 64:66:b3:09:18:7a >> athn0 detached >> urtwn0 at uhub2 port 2 "802.11n USB WLAN" rev 2.00/2.00 addr 4 >> urtwn0: MAC/BB RTL8192CU, RF 6052 2T2R, address f8:1a:67:22:b3:89 >>> -- Alexandre
