This was also seen on a macbook by Jan Stary: http://marc.info/?l=openbsd-misc&m=131213545109050&w=2
And on my Samsung N210: http://marc.info/?l=openbsd-misc&m=131193104030288&w=2 I still have this problem, and ran out of options to investigate. The funny thing is that, just like the MacBook case above, the high interrupt load goes away every other suspend/resume. Do you see this as well? It seems like a clue, but I have no idea where to begin investigating, except for the ipi code you wrote the diff for. If anyone has any suggestions for gathering output or add some instrumentation code to the kernel I would appreciate it. Bye, -Leroy On Mon, Oct 17, 2011 at 12:00 AM, Alexander Polakov <polac...@gmail.com>wrote: > I've got a problem. When I suspend my laptop (Lenovo X100e, dmesg > below), it suspends just fine, and resumes well too (thanks for that!). > But after resume I see high interrupt rates (like 77%) in top and > vmstat, it feels slower and fan never stops. Any ideas? > > % top: > > CPU0 states: 0.8% user, 0.0% nice, 0.6% system, 83.6% interrupt, 15.0% > idle > CPU1 states: 3.6% user, 0.0% nice, 3.4% system, 0.0% interrupt, 93.0% > idle > > % vmstat -iv > interrupt total rate > irq0/clock 185246 199 > irq0/ipi 225445 242 > irq0/ipi_nop 216556 232 > irq0/ipi_flushfp 32 0 > irq0/ipi_synchfp 8746 9 > irq0/ipi_mtrr 1 0 > irq0/ipi_setperf 110 0 > irq144/acpi0 1160 1 > irq99/re0 6380 6 > irq97/ahci0 11188 12 > irq98/ohci0 1 0 > irq98/ohci1 1 0 > irq100/ohci2 1 0 > irq101/ehci1 260 0 > irq98/azalia0 25407 27 > irq145/pckbc0 3023 3 > irq146/pckbc0 3826 4 > Total 687383 739 > > (I hacked ipi.c a bit to get this output, patch below). > > Index: amd64/amd64/ipi.c > =================================================================== > RCS file: /cvs/src/sys/arch/amd64/amd64/ipi.c,v > retrieving revision 1.10 > diff -u -p -r1.10 ipi.c > --- amd64/amd64/ipi.c 27 Dec 2010 20:22:23 -0000 1.10 > +++ amd64/amd64/ipi.c 16 Oct 2011 21:55:18 -0000 > @@ -101,6 +101,7 @@ void > x86_ipi_handler(void) > { > extern struct evcount ipi_count; > + extern struct evcount ipi_perfunc[X86_NIPI]; > struct cpu_info *ci = curcpu(); > u_int32_t pending; > int bit; > @@ -111,6 +112,7 @@ x86_ipi_handler(void) > if (pending & (1<<bit)) { > pending &= ~(1<<bit); > (*ipifunc[bit])(ci); > + ipi_perfunc[bit].ec_count++; > ipi_count.ec_count++; > } > } > Index: amd64/amd64/lapic.c > =================================================================== > RCS file: /cvs/src/sys/arch/amd64/amd64/lapic.c,v > retrieving revision 1.27 > diff -u -p -r1.27 lapic.c > --- amd64/amd64/lapic.c 20 Sep 2010 06:33:46 -0000 1.27 > +++ amd64/amd64/lapic.c 16 Oct 2011 21:55:18 -0000 > @@ -64,6 +64,7 @@ > struct evcount clk_count; > #ifdef MULTIPROCESSOR > struct evcount ipi_count; > +struct evcount ipi_perfunc[X86_NIPI]; > #endif > > void lapic_delay(int); > @@ -247,6 +248,15 @@ lapic_boot_init(paddr_t lapic_base) > evcount_attach(&clk_count, "clock", &clk_irq); > #ifdef MULTIPROCESSOR > evcount_attach(&ipi_count, "ipi", &ipi_irq); > + /* per function counters */ > + evcount_attach(&ipi_perfunc[0], "ipi_halt", &ipi_irq); > + evcount_attach(&ipi_perfunc[1], "ipi_nop", &ipi_irq); > + evcount_attach(&ipi_perfunc[2], "ipi_flushfpu", &ipi_irq); > + evcount_attach(&ipi_perfunc[3], "ipi_synchfpu", &ipi_irq); > + evcount_attach(&ipi_perfunc[4], "ipi_NULL", &ipi_irq); > + evcount_attach(&ipi_perfunc[5], "ipi_mtrr", &ipi_irq); > + evcount_attach(&ipi_perfunc[6], "ipi_setperf", &ipi_irq); > + evcount_attach(&ipi_perfunc[7], "ipi_ddb", &ipi_irq); > #endif > } > > % dmesg > > OpenBSD 5.0-current (kernel) #31: Mon Oct 17 01:35:15 MSK 2011 > r...@watashi.plhk.ru:/usr/obj/kernel > real mem = 1876754432 (1789MB) > avail mem = 1812717568 (1728MB) > mainbus0 at root > bios0 at mainbus0: SMBIOS rev. 2.5 @ 0xf0920 (43 entries) > bios0: vendor LENOVO version "6XET47WW (1.30 )" date 12/30/2010 > bios0: LENOVO 3508RL6 > acpi0 at bios0: rev 2 > acpi0: sleep states S0 S3 S4 S5 > acpi0: tables DSDT FACP TCPA SSDT APIC MCFG HPET SLIC > acpi0: wakeup devices PB5_(S5) OHC0(S3) OHC1(S3) OHC2(S3) OHC3(S3) OHC4(S3) > P2P_(S5) LID_(S3) > acpitimer0 at acpi0: 3579545 Hz, 32 bits > acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat > cpu0 at mainbus0: apid 0 (boot processor) > cpu0: AMD Athlon(tm) Neo X2 Dual Core Processor L335, 1596.97 MHz > cpu0: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW > cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 256KB > 64b/line 16-way L2 cache > cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully > associative > cpu0: DTLB 32 4KB entries fully associative, 8 4MB entries fully > associative > cpu0: apic clock running at 199MHz > cpu1 at mainbus0: apid 1 (application processor) > cpu1: AMD Athlon(tm) Neo X2 Dual Core Processor L335, 1596.00 MHz > cpu1: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW > cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 256KB > 64b/line 16-way L2 cache > cpu1: ITLB 32 4KB entries fully associative, 8 4MB entries fully > associative > cpu1: DTLB 32 4KB entries fully associative, 8 4MB entries fully > associative > ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 21, 24 pins > acpimcfg0 at acpi0 addr 0xe0000000, bus 0-3 > acpihpet0 at acpi0: 14318180 Hz > acpiprt0 at acpi0: bus 0 (PCI0) > acpiprt1 at acpi0: bus 2 (PB5_) > acpiprt2 at acpi0: bus 4 (P2P_) > acpiprt3 at acpi0: bus 1 (AGP_) > acpiec0 at acpi0 > acpicpu0 at acpi0: C3, C2, PSS > acpicpu1 at acpi0: PSS > acpitz0 at acpi0: critical temperature is 92 degC > acpibtn0 at acpi0: PWRB > acpibtn1 at acpi0: SLPB > acpithinkpad0 at acpi0 > acpiac0 at acpi0: AC unit online > acpibat0 at acpi0: BAT1 model "42T4785" serial 958 type LION oem "SANYO" > acpibtn2 at acpi0: LID_ > cpu0: PowerNow! K8 1596 MHz: speeds: 1600 800 MHz > pci0 at mainbus0 bus 0 > pchb0 at pci0 dev 0 function 0 "AMD RS780 Host" rev 0x00 > ppb0 at pci0 dev 1 function 0 "AMD RS780 PCIE" rev 0x00 > pci1 at ppb0 bus 1 > vga1 at pci1 dev 5 function 0 "ATI Radeon HD 3200" rev 0x00 > wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) > wsdisplay0: screen 1-5 added (80x25, vt100 emulation) > radeondrm0 at vga1: apic 2 int 18 > drm0 at radeondrm0 > ppb1 at pci0 dev 5 function 0 "AMD RS780 PCIE" rev 0x00: msi > pci2 at ppb1 bus 2 > re0 at pci2 dev 0 function 0 "Realtek 8168" rev 0x03: RTL8168D/8111D > (0x2800), apic 2 int 17, address c8:0a:a9:cc:b0:01 > rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 2 > ahci0 at pci0 dev 17 function 0 "ATI SBx00 SATA" rev 0x00: apic 2 int 22, > AHCI 1.1 > scsibus0 at ahci0: 32 targets > sd0 at scsibus0 targ 0 lun 0: <ATA, WDC WD2500BEVT-0, 02.0> SCSI3 0/direct > fixed naa.50014ee204a69fb1 > sd0: 238475MB, 512 bytes/sector, 488397168 sectors > ohci0 at pci0 dev 18 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 16, > version 1.0, legacy support > ohci1 at pci0 dev 18 function 1 "ATI SB700 USB" rev 0x00: apic 2 int 16, > version 1.0, legacy support > ehci0 at pci0 dev 18 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 17 > usb0 at ehci0: USB revision 2.0 > uhub0 at usb0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 > ohci2 at pci0 dev 19 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 18, > version 1.0, legacy support > ehci1 at pci0 dev 19 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 19 > usb1 at ehci1: USB revision 2.0 > uhub1 at usb1 "ATI EHCI root hub" rev 2.00/1.00 addr 1 > piixpm0 at pci0 dev 20 function 0 "ATI SBx00 SMBus" rev 0x3c: SMI > iic0 at piixpm0 > spdmem0 at iic0 addr 0x51: 2GB DDR2 SDRAM non-parity PC2-5300CL5 SO-DIMM > azalia0 at pci0 dev 20 function 2 "ATI SBx00 HD Audio" rev 0x00: apic 2 int > 16 > azalia0: codecs: Conexant/0x5066 > audio0 at azalia0 > pcib0 at pci0 dev 20 function 3 "ATI SB700 ISA" rev 0x00 > ppb2 at pci0 dev 20 function 4 "ATI SB600 PCI" rev 0x00 > pci3 at ppb2 bus 4 > pchb1 at pci0 dev 24 function 0 "AMD AMD64 0Fh HyperTransport" rev 0x00 > pchb2 at pci0 dev 24 function 1 "AMD AMD64 0Fh Address Map" rev 0x00 > pchb3 at pci0 dev 24 function 2 "AMD AMD64 0Fh DRAM Cfg" rev 0x00 > kate0 at pci0 dev 24 function 3 "AMD AMD64 0Fh Misc Cfg" rev 0x00: core rev > BH-G2 > usb2 at ohci0: USB revision 1.0 > uhub2 at usb2 "ATI OHCI root hub" rev 1.00/1.00 addr 1 > usb3 at ohci1: USB revision 1.0 > uhub3 at usb3 "ATI OHCI root hub" rev 1.00/1.00 addr 1 > usb4 at ohci2: USB revision 1.0 > uhub4 at usb4 "ATI OHCI root hub" rev 1.00/1.00 addr 1 > 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 touchpad, firmware 7.4 > pcppi0 at isa0 port 0x61 > spkr0 at pcppi0 > mtrr: Pentium Pro MTRR support > umass0 at uhub1 port 1 configuration 1 interface 0 "Generic USB2.0-CRW" rev > 2.00/58.88 addr 2 > umass0: using SCSI over Bulk-Only > scsibus1 at umass0: 2 targets, initiator 0 > sd1 at scsibus1 targ 1 lun 0: <Generic-, Multi-Card, 1.00> SCSI0 0/direct > removable serial.0bda0158114173400000 > uvideo0 at uhub1 port 2 configuration 1 interface 0 "Image Processor > Integrated Camera" rev 2.00/30.08 addr 3 > video0 at uvideo0 > vscsi0 at root > scsibus2 at vscsi0: 256 targets > softraid0 at root > scsibus3 at softraid0: 256 targets > root on sd0a (ef779c8e627ac39e.a) swap on sd0b dump on sd0b > sd2 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 005> SCSI2 0/direct > fixed > sd2: 206221MB, 512 bytes/sector, 422340976 sectors > sd1 detached > scsibus1 detached > umass0 detached > umass0 at uhub1 port 1 configuration 1 interface 0 "Generic USB2.0-CRW" rev > 2.00/58.88 addr 2 > umass0: using SCSI over Bulk-Only > scsibus1 at umass0: 2 targets, initiator 0 > sd1 at scsibus1 targ 1 lun 0: <Generic-, Multi-Card, 1.00> SCSI0 0/direct > removable serial.0bda0158114173400000 > video0 detached > uvideo0 detached > uvideo0 at uhub1 port 2 configuration 1 interface 0 "Image Processor > Integrated Camera" rev 2.00/30.08 addr 3 > video0 at uvideo0 > > -- > Alexander Polakov | plhk.ru
