Hello,
I use OpenBSD amd64 snapshots on the following dmesg hardware.
The download rate on a browser was slow and I figured out with some
memory mapped partition that disk transfer rate was slow.
I can bear this since I'm not into large file transfer business. But
here is another interesting fact: each time my disk is used by some
file transfer, all the running applications, mostly GUI based are
stalling - that includes mostly chromium ( even if it is not chromium
that it does the disk data transfer).
My questions are: is something incorrectly set up on my computer,
regarding the multitasking?
I understand disk operations are slow, but may I say that kernel is
dragged in that slow transfer too (no DMA, no cache, etc.)?
Does this happens to all users, but since there are more powerful
configuration involved the delay is not so noticeable?
I know it is hard to project this, but can someone give me a hint
about a minimum hardware to allow using chromium with no delays,
please?
I know, it should be advisable to get the maximum performance
hardware, but i'm not in that case.
OpenBSD 7.1-current (GENERIC.MP) #483: Sat Apr 23 05:33:19 MDT 2022
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 7711170560 (7353MB)
avail mem = 7460139008 (7114MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xe86ed (64 entries)
bios0: vendor Hewlett-Packard version "K06 v02.77" date 03/22/2018
bios0: Hewlett-Packard HP Compaq Pro 6305 SFF
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT MCFG HPET SSDT MSDM TCPA IVRS VFCT
SSDT SSDT CRAT
acpi0: wakeup devices SBAZ(S4) PS2K(S3) PS2M(S3) P0PC(S4) PE20(S4)
PE21(S4) PE22(S4) BNIC(S4) PE23(S4) BR12(S4) BR14(S4) OHC1(S3)
EHC1(S3) OHC2(S3) EHC2(S3) OHC3(S3) [...]
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 16 (boot processor)
cpu0: AMD A8-5500B APU with Radeon(tm) HD Graphics, 3194.45 MHz, 15-10-01
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,PCLMUL,MWAIT,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,XOP,SKINIT,WDT,FMA4,TCE,NODEID,TBM,TOPEXT,CPCTR,ITSC,BMI1,IBPB
cpu0: 64KB 64b/line 2-way I-cache, 16KB 64b/line 4-way D-cache, 2MB
64b/line 16-way L2 cache
cpu0: ITLB 48 4KB entries fully associative, 24 4MB entries fully associative
cpu0: DTLB 64 4KB entries fully associative, 64 4MB entries fully associative
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, IBE
cpu1 at mainbus0: apid 17 (application processor)
cpu1: AMD A8-5500B APU with Radeon(tm) HD Graphics, 3194.05 MHz, 15-10-01
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,PCLMUL,MWAIT,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,XOP,SKINIT,WDT,FMA4,TCE,NODEID,TBM,TOPEXT,CPCTR,ITSC,BMI1,IBPB
cpu1: 64KB 64b/line 2-way I-cache, 16KB 64b/line 4-way D-cache, 2MB
64b/line 16-way L2 cache
cpu1: ITLB 48 4KB entries fully associative, 24 4MB entries fully associative
cpu1: DTLB 64 4KB entries fully associative, 64 4MB entries fully associative
cpu1: disabling user TSC (skew=129)
cpu1: smt 1, core 0, package 0
cpu2 at mainbus0: apid 18 (application processor)
cpu2: AMD A8-5500B APU with Radeon(tm) HD Graphics, 3194.05 MHz, 15-10-01
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,XOP,SKINIT,WDT,FMA4,TCE,NODEID,TBM,TOPEXT,CPCTR,ITSC,BMI1,IBPB
cpu2: 64KB 64b/line 2-way I-cache, 16KB 64b/line 4-way D-cache, 2MB
64b/line 16-way L2 cache
cpu2: ITLB 48 4KB entries fully associative, 24 4MB entries fully associative
cpu2: DTLB 64 4KB entries fully associative, 64 4MB entries fully associative
cpu2: disabling user TSC (skew=186)
cpu2: smt 0, core 1, package 0
cpu3 at mainbus0: apid 19 (application processor)
cpu3: AMD A8-5500B APU with Radeon(tm) HD Graphics, 3194.05 MHz, 15-10-01
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,XOP,SKINIT,WDT,FMA4,TCE,NODEID,TBM,TOPEXT,CPCTR,ITSC,BMI1,IBPB
cpu3: 64KB 64b/line 2-way I-cache, 16KB 64b/line 4-way D-cache, 2MB
64b/line 16-way L2 cache
cpu3: ITLB 48 4KB entries fully associative, 24 4MB entries fully associative
cpu3: DTLB 64 4KB entries fully associative, 64 4MB entries fully associative
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 5 pa 0xfec00000, version 21, 24 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xf0000000, bus 0-63
acpihpet0 at acpi0: 14318180 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (BR13)
acpiprt2 at acpi0: bus -1 (BR15)
acpiprt3 at acpi0: bus -1 (BR16)
acpiprt4 at acpi0: bus -1 (BR17)
acpiprt5 at acpi0: bus 1 (P0PC)
acpiprt6 at acpi0: bus 2 (PE20)
acpiprt7 at acpi0: bus -1 (PE21)
acpiprt8 at acpi0: bus 3 (PE22)
acpiprt9 at acpi0: bus -1 (PE23)
acpiprt10 at acpi0: bus -1 (BR12)
acpiprt11 at acpi0: bus -1 (BR14)
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
acpicmos0 at acpi0
com0 at acpi0 UAR1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
com1 at acpi0 UAR2 addr 0x2f8/0x8 irq 3: ns16550a, 16 byte fifo
tpm0 at acpi0 TPM_ 1.2 (TIS) addr 0xfed40000/0x10000, Infineon SLB9635
1.2 rev 0x10
acpibtn0 at acpi0: PWRB
"PNP0C14" at acpi0 not configured
acpicpu0 at acpi0: C2(0@100 io@0x1771), C1(@1 halt!), PSS
acpicpu1 at acpi0: C2(0@100 io@0x1771), C1(@1 halt!), PSS
acpicpu2 at acpi0: C2(0@100 io@0x1771), C1(@1 halt!), PSS
acpicpu3 at acpi0: C2(0@100 io@0x1771), C1(@1 halt!), PSS
cpu0: 3194 MHz: speeds: 3200 2900 2600 2200 1800 1400 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "AMD 15/1xh Host" rev 0x00
"AMD 15/1xh IOMMU" rev 0x00 at pci0 dev 0 function 2 not configured
radeondrm0 at pci0 dev 1 function 0 "ATI Radeon HD 7560D" rev 0x00
drm0 at radeondrm0
radeondrm0: msi
azalia0 at pci0 dev 1 function 1 vendor "ATI", unknown product 0x9902
rev 0x00: msi
azalia0: no supported codecs
xhci0 at pci0 dev 16 function 0 "AMD Hudson-2 xHCI" rev 0x03: msi, xHCI 0.96
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "AMD xHCI root hub" rev
3.00/1.00 addr 1
xhci1 at pci0 dev 16 function 1 "AMD Hudson-2 xHCI" rev 0x03: msi, xHCI 0.96
usb1 at xhci1: USB revision 3.0
uhub1 at usb1 configuration 1 interface 0 "AMD xHCI root hub" rev
3.00/1.00 addr 1
ahci0 at pci0 dev 17 function 0 "AMD Hudson-2 SATA" rev 0x40: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
ahci0: port 2: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, ST250DM000-1BD14, KC47> naa.5000c5006520feaf
sd0: 238475MB, 512 bytes/sector, 488397168 sectors
cd0 at scsibus1 targ 2 lun 0: <hp, DVD D DH16D7SH, WHH3> removable
ohci0 at pci0 dev 18 function 0 "AMD Hudson-2 USB" rev 0x11: apic 5
int 18, version 1.0, legacy support
ehci0 at pci0 dev 18 function 2 "AMD Hudson-2 USB2" rev 0x11: apic 5 int 17
usb2 at ehci0: USB revision 2.0
uhub2 at usb2 configuration 1 interface 0 "AMD EHCI root hub" rev
2.00/1.00 addr 1
ohci1 at pci0 dev 19 function 0 "AMD Hudson-2 USB" rev 0x11: apic 5
int 18, version 1.0, legacy support
ehci1 at pci0 dev 19 function 2 "AMD Hudson-2 USB2" rev 0x11: apic 5 int 17
usb3 at ehci1: USB revision 2.0
uhub3 at usb3 configuration 1 interface 0 "AMD EHCI root hub" rev
2.00/1.00 addr 1
piixpm0 at pci0 dev 20 function 0 "AMD Hudson-2 SMBus" rev 0x14: SMI
iic0 at piixpm0
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-12800
spdmem1 at iic0 addr 0x52: 4GB DDR3 SDRAM PC3-12800
azalia1 at pci0 dev 20 function 2 "AMD Hudson-2 HD Audio" rev 0x01:
apic 5 int 16
azalia1: codecs: Realtek ALC221
audio0 at azalia1
pcib0 at pci0 dev 20 function 3 "AMD Hudson-2 LPC" rev 0x11
ppb0 at pci0 dev 20 function 4 "AMD Hudson-2 PCI" rev 0x40
pci1 at ppb0 bus 1
ohci2 at pci0 dev 20 function 5 "AMD Hudson-2 USB" rev 0x11: apic 5
int 18, version 1.0, legacy support
ppb1 at pci0 dev 21 function 0 "AMD Hudson-2 PCIE" rev 0x00
pci2 at ppb1 bus 2
ppb2 at pci0 dev 21 function 2 "AMD Hudson-2 PCIE" rev 0x00
pci3 at ppb2 bus 3
bge0 at pci3 dev 0 function 0 "Broadcom BCM5761" rev 0x10, BCM5761 A1
(0x5761100): msi, address 2c:44:fd:20:36:fb
brgphy0 at bge0 phy 1: BCM5761 10/100/1000baseT PHY, rev. 0
pchb1 at pci0 dev 24 function 0 "AMD 15/1xh Link Cfg" rev 0x00
pchb2 at pci0 dev 24 function 1 "AMD 15/1xh Address Map" rev 0x00
pchb3 at pci0 dev 24 function 2 "AMD 15/1xh DRAM Cfg" rev 0x00
km0 at pci0 dev 24 function 3 "AMD 15/1xh Misc Cfg" rev 0x00
pchb4 at pci0 dev 24 function 4 "AMD 15/1xh CPU Power" rev 0x00
pchb5 at pci0 dev 24 function 5 "AMD 15/1xh NB Power" rev 0x00
usb4 at ohci0: USB revision 1.0
uhub4 at usb4 configuration 1 interface 0 "AMD OHCI root hub" rev
1.00/1.00 addr 1
usb5 at ohci1: USB revision 1.0
uhub5 at usb5 configuration 1 interface 0 "AMD OHCI root hub" rev
1.00/1.00 addr 1
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
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
usb6 at ohci2: USB revision 1.0
uhub6 at usb6 configuration 1 interface 0 "AMD OHCI root hub" rev
1.00/1.00 addr 1
vmm0 at mainbus0: SVM/RVI
efifb at mainbus0 not configured
uhidev0 at uhub0 port 3 configuration 1 interface 0 "Genius USB
Optical Mouse" rev 2.00/1.00 addr 2
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
uhidev1 at uhub0 port 4 configuration 1 interface 0 "SIGMACH1P USB
Keykoard" rev 1.10/1.10 addr 3
uhidev1: iclass 3/1
ukbd0 at uhidev1: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
uhidev2 at uhub0 port 4 configuration 1 interface 1 "SIGMACH1P USB
Keykoard" rev 1.10/1.10 addr 3
uhidev2: iclass 3/0, 2 report ids
ucc0 at uhidev2 reportid 1: 573 usages, 18 keys, array
wskbd2 at ucc0 mux 1
uhid0 at uhidev2 reportid 2: input=1, output=0, feature=0
umass0 at uhub3 port 5 configuration 1 interface 0 "Generic Mass
Storage" rev 2.00/1.05 addr 2
umass0: using SCSI over Bulk-Only
scsibus2 at umass0: 2 targets, initiator 0
sd1 at scsibus2 targ 1 lun 0: <Generic, Flash Disk, 8.07> removable
sd1: 961MB, 512 bytes/sector, 1968128 sectors
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on sd0a (8f91fc02b31000ea.a) swap on sd0b dump on sd0b
radeondrm0: ARUBA
radeondrm0: 1680x1050, 32bpp
wsdisplay0 at radeondrm0 mux 1: console (std, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wskbd2: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
wsmouse0 detached
ums0 detached
uhidev0 detached
uhidev0 at uhub0 port 3 configuration 1 interface 0 "Genius USB
Optical Mouse" rev 2.00/1.00 addr 2
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
wsmouse0 detached
ums0 detached
uhidev0 detached
uhidev0 at uhub0 port 3 configuration 1 interface 0 "Genius USB
Optical Mouse" rev 2.00/1.00 addr 2
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
wsmouse0 detached
ums0 detached
uhidev0 detached
uhidev0 at uhub0 port 3 configuration 1 interface 0 "Genius USB
Optical Mouse" rev 2.00/1.00 addr 2
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
sd1 detached
scsibus2 detached
umass0 detached
syncing disks... done
