Hi Mark,
On Fri, Jan 22, 2016 at 10:46:39PM +0100, Mark Kettenis wrote:
> Firefox makes a lot of concurrent malloc(3) calls. The locking to
> make malloc(3) thread-safe is a bit...suboptimal. This diff makes
> things better by using a mutex instead of spinlock. If you're running
> Firefox you want to try it; it makes video watchable on some machines.
> If you're not running Firefox you want to try it; to make sure it
> doesn't break things.
I tried your diff. Nothing bad happened.
I don't notice much difference in firefox using a highly unscientific
"gut-feeling" before and after test. Youtube videos still stutter -- too
much to watch. During this time firefox uses ~170% CPU.
I also tried iridium, my everyday browser and didn't notice a difference
here either. Youtube videos performance remains the same: much better
than firefox, but still skipping frequently.
My system is a thinkpad x240t tablet. Dmesg follows (sorry about the
suspend in there: I have to perform a zzz and wake before the HDMI2
output shows up in my docking station, so it's always the first thing I
do after booting fresh -- keep meaning to look into this):
OpenBSD 5.9-beta (GENERIC.MP) #17: Mon Jan 25 14:31:46 GMT 2016
e...@wilfred.dlink.com:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 16844521472 (16064MB)
avail mem = 16329822208 (15573MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdae9c000 (68 entries)
bios0: vendor LENOVO version "GCETA2WW (2.62 )" date 04/09/2015
bios0: LENOVO 3437CTO
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SLIC TCPA SSDT SSDT SSDT HPET APIC MCFG ECDT FPDT ASF!
UEFI UEFI POAT SSDT SSDT DMAR UEFI DBG2
acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP3(S4) XHCI(S3) 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) i5-3320M CPU @ 2.60GHz, 2594.59 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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz, 2594.11 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,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS,SENSOR,ARAT
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, 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 4 (EXP3)
acpicpu0 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C2(350@80 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1, EHC2
acpitz0 at acpi0: critical temperature is 103 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
acpibat0 at acpi0: BAT0 model "45N1077" serial 14278 type LION oem "SANYO"
acpibat1 at acpi0: BAT1 not present
acpiac0 at acpi0: AC unit online
acpithinkpad0 at acpi0
acpidock0 at acpi0: GDCK docked (15)
cpu0: Enhanced SpeedStep 2594 MHz: speeds: 2601, 2600, 2500, 2400, 2300, 2200,
2100, 2000, 1900, 1800, 1700, 1600, 1500, 1400, 1300, 1200 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 3G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 4000" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1366x768
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel 7 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
3c:97:0e:a5:02:69
ehci0 at pci0 dev 26 function 0 "Intel 7 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 7 Series HD Audio" rev 0x04: msi
azalia0: codecs: Realtek ALC269, Intel/0x2806, using Realtek ALC269
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 7 Series PCIE" rev 0xc4: msi
pci1 at ppb0 bus 2
sdhc0 at pci1 dev 0 function 0 "Ricoh 5U822 SD/MMC" rev 0x07: apic 2 int 16
sdmmc0 at sdhc0
ppb1 at pci0 dev 28 function 1 "Intel 7 Series PCIE" rev 0xc4: msi
pci2 at ppb1 bus 3
iwn0 at pci2 dev 0 function 0 "Intel Centrino Wireless-N 2200" rev 0xc4: msi,
MIMO 2T2R, BGN, address 9c:4e:36:b8:f8:f8
ppb2 at pci0 dev 28 function 2 "Intel 7 Series PCIE" rev 0xc4: msi
pci3 at ppb2 bus 4
ehci1 at pci0 dev 29 function 0 "Intel 7 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 QM77 LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 7 Series AHCI" rev 0x04: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
ahci0: port 1: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, Crucial_CT240M50, MU02> SCSI3 0/direct
fixed naa.500a0751093c44b5
sd0: 228936MB, 512 bytes/sector, 468862128 sectors, thin
cd0 at scsibus1 targ 1 lun 0: <MATSHITA, DVD-RAM UJ8C2, SB01> ATAPI 5/cdrom
removable
ichiic0 at pci0 dev 31 function 3 "Intel 7 Series SMBus" rev 0x04: apic 2 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
spdmem1 at iic0 addr 0x51: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
uhub2 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
uhidev0 at uhub2 port 2 configuration 1 interface 0 "Logitech USB Receiver" rev
2.00/12.01 addr 3
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev1 at uhub2 port 2 configuration 1 interface 1 "Logitech USB Receiver" rev
2.00/12.01 addr 3
uhidev1: iclass 3/1, 8 report ids
ums0 at uhidev1 reportid 2: 16 buttons, Z and W dir
wsmouse1 at ums0 mux 0
uhid0 at uhidev1 reportid 3: input=4, output=0, feature=0
uhid1 at uhidev1 reportid 4: input=1, output=0, feature=0
uhid2 at uhidev1 reportid 8: input=1, output=0, feature=0
uhidev2 at uhub2 port 2 configuration 1 interface 2 "Logitech USB Receiver" rev
2.00/12.01 addr 3
uhidev2: iclass 3/0, 33 report ids
uhid3 at uhidev2 reportid 16: input=6, output=6, feature=0
uhid4 at uhidev2 reportid 17: input=19, output=19, feature=0
uhid5 at uhidev2 reportid 32: input=14, output=14, feature=0
uhid6 at uhidev2 reportid 33: input=31, output=31, feature=0
ugen0 at uhub2 port 4 "Broadcom Corp BCM20702A0" rev 2.00/1.12 addr 4
uvideo0 at uhub2 port 6 configuration 1 interface 0 "Chicony Electronics Co.,
Ltd. Integrated Camera" rev 2.00/5.20 addr 5
video0 at uvideo0
uhub3 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
uhub4 at uhub3 port 3 "Standard Microsystems product 0x2514" rev 2.00/0.00 addr
3
uhidev3 at uhub3 port 5 configuration 1 interface 0 "Tablet ISD-V4" rev
1.10/6.11 addr 4
uhidev3: iclass 3/1, 2 report ids
ums1 at uhidev3 reportid 1: 2 buttons
wsmouse2 at ums1 mux 0
ums2 at uhidev3 reportid 2: 3 buttons, tip, barrel, eraser
wsmouse3 at ums2 mux 0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (a81068940d057f4c.a) swap on sd0b dump on sd0b
uhidev4 at uhub4 port 4 configuration 1 interface 0 "SEJIN SEJIN USB joint
Keyboard" rev 1.10/1.30 addr 5
uhidev4: iclass 3/1
ukbd1 at uhidev4: 8 variable keys, 6 key codes
wskbd2 at ukbd1 mux 1
wskbd2: connecting to wsdisplay0
wskbd1: disconnecting from wsdisplay0
wskbd1 detached
ukbd0 detached
uhidev0 detached
wsmouse1 detached
ums0 detached
uhid0 detached
uhid1 detached
uhid2 detached
uhidev1 detached
uhid3 detached
uhid4 detached
uhid5 detached
uhid6 detached
uhidev2 detached
ugen0 detached
video0 detached
uvideo0 detached
uhub2 detached
uhub0 detached
wskbd2: disconnecting from wsdisplay0
wskbd2 detached
ukbd1 detached
uhidev4 detached
uhub4 detached
wsmouse2 detached
ums1 detached
wsmouse3 detached
ums2 detached
uhidev3 detached
uhub3 detached
uhub1 detached
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1
uhub2 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
uhidev0 at uhub2 port 2 configuration 1 interface 0 "Logitech USB Receiver" rev
2.00/12.01 addr 3
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev1 at uhub2 port 2 configuration 1 interface 1 "Logitech USB Receiver" rev
2.00/12.01 addr 3
uhidev1: iclass 3/1, 8 report ids
ums0 at uhidev1 reportid 2: 16 buttons, Z and W dir
wsmouse1 at ums0 mux 0
uhid0 at uhidev1 reportid 3: input=4, output=0, feature=0
uhid1 at uhidev1 reportid 4: input=1, output=0, feature=0
uhid2 at uhidev1 reportid 8: input=1, output=0, feature=0
uhidev2 at uhub2 port 2 configuration 1 interface 2 "Logitech USB Receiver" rev
2.00/12.01 addr 3
uhidev2: iclass 3/0, 33 report ids
uhid3 at uhidev2 reportid 16: input=6, output=6, feature=0
uhid4 at uhidev2 reportid 17: input=19, output=19, feature=0
uhid5 at uhidev2 reportid 32: input=14, output=14, feature=0
uhid6 at uhidev2 reportid 33: input=31, output=31, feature=0
ugen0 at uhub2 port 4 "Broadcom Corp BCM20702A0" rev 2.00/1.12 addr 4
uvideo0 at uhub2 port 6 configuration 1 interface 0 "Chicony Electronics Co.,
Ltd. Integrated Camera" rev 2.00/5.20 addr 5
video0 at uvideo0
uhub3 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
uhub4 at uhub3 port 3 "Standard Microsystems product 0x2514" rev 2.00/0.00 addr
3
uhidev3 at uhub3 port 5 configuration 1 interface 0 "Tablet ISD-V4" rev
1.10/6.11 addr 4
uhidev3: iclass 3/1, 2 report ids
ums1 at uhidev3 reportid 1: 2 buttons
wsmouse2 at ums1 mux 0
ums2 at uhidev3 reportid 2: 3 buttons, tip, barrel, eraser
wsmouse3 at ums2 mux 0
uhidev4 at uhub4 port 4 configuration 1 interface 0 "SEJIN SEJIN USB joint
Keyboard" rev 1.10/1.30 addr 5
uhidev4: iclass 3/1
ukbd1 at uhidev4: 8 variable keys, 6 key codes
wskbd2 at ukbd1 mux 1
wskbd2: connecting to wsdisplay0
--
Best Regards
Edd Barrett
http://www.theunixzoo.co.uk
