Re: softeaid rebuild very slow
Hi >On Sun, 13 Apr 2014, John Cox wrote: >> Hi >> >> I'm running OpenBSD 5.4 (dmesg below) with softraid in mirror mode. >> One of the drives failed so I replaced it - the first time that RAID >> has actually saved my data as opposed to simply making my life harder! >> Thank you softraid. >> >> They are 3T drives and it looks like the rebuild is going to take ~5 >> days to do. Is this expected? Is there any config parameter that I >> should have set up to improve performance? 5 days = ~7MBytes / sec >> and I know the drives can run a lot faster than that. > >The current code is designed to be robust rather than fast - it does a read >from one of the online chunks (in this case you presumably only have one of >those) and then does a write to all chunks (including both the online ones >and the rebuilding one). In order to speed things up you want to read from >one online chunk and only write to the chunk that needs rebuilding - the >problem with this is that you need to prevent changes to the blocks that you >are rebuilding until that write completes. Unfortunately that means some more >restructing and additional code, plus a whole bunch of testing... Why do you need to prevent update? Surely if a new write arrives for that block then you simply schedule it on top of the previous write, your data integrity will be no worse than you had with the previous "degraded" state of that block. >> Can I reboot the system during the rebuild or if I do will it start at >> the beginning again? I could try it but I'm now about 3 days in and >> don't wish to waste it. > >The rebuild progress is stored in the softraid metadata - if you reboot (or >even if the power goes out) it should pick up where it left off and complete >the rebuild. Good Oh! I was expecting that that was the case but felt disinclined to test it. Thanks JC
Re: softeaid rebuild very slow
You can always do a super-rebuild. Simply, backup the contents of your drive to another computer or external drive. Then start from scratch with your softraid 1 array, which will just be re-created, and take < ~1 min. Then copy the data back. Given this kind of setup, you can probably be back up and running in a matter of hours rather than a matter of days. On Sun, Apr 13, 2014 at 7:32 AM, Joel Sing wrote: > On Sun, 13 Apr 2014, John Cox wrote: > > Hi > > > > I'm running OpenBSD 5.4 (dmesg below) with softraid in mirror mode. > > One of the drives failed so I replaced it - the first time that RAID > > has actually saved my data as opposed to simply making my life harder! > > Thank you softraid. > > > > They are 3T drives and it looks like the rebuild is going to take ~5 > > days to do. Is this expected? Is there any config parameter that I > > should have set up to improve performance? 5 days = ~7MBytes / sec > > and I know the drives can run a lot faster than that. > > The current code is designed to be robust rather than fast - it does a read > from one of the online chunks (in this case you presumably only have one of > those) and then does a write to all chunks (including both the online ones > and the rebuilding one). In order to speed things up you want to read from > one online chunk and only write to the chunk that needs rebuilding - the > problem with this is that you need to prevent changes to the blocks that > you > are rebuilding until that write completes. Unfortunately that means some > more > restructing and additional code, plus a whole bunch of testing... > > > Can I reboot the system during the rebuild or if I do will it start at > > the beginning again? I could try it but I'm now about 3 days in and > > don't wish to waste it. > > The rebuild progress is stored in the softraid metadata - if you reboot (or > even if the power goes out) it should pick up where it left off and > complete > the rebuild. > > > #dmesg > > OpenBSD 5.4 (GENERIC.MP) #41: Tue Jul 30 15:30:02 MDT 2013 > > dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > real mem = 16973672448 (16187MB) > > avail mem = 16514109440 (15749MB) > > mainbus0 at root > > bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xec420 (81 entries) > > bios0: vendor Intel Corp. version "MKQ7710H.86A.0065.2014.0318.1044" > > date 03/18/2014 > > bios0: Intel Corporation DQ77MK > > acpi0 at bios0: rev 2 > > acpi0: sleep states S0 S3 S4 S5 > > acpi0: tables DSDT FACP APIC FPDT TCPA MCFG HPET SSDT SSDT SSDT DMAR > > ASF! > > acpi0: wakeup devices PS2K(S3) PS2M(S3) UAR1(S3) P0P1(S4) USB1(S3) > > USB2(S3) USB3(S3) USB4(S3) USB5(S3) USB6(S3) USB7(S3) PXSX(S4) > > RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) [...] > > acpitimer0 at acpi0: 3579545 Hz, 24 bits > > acpimadt0 at acpi0 addr 0xfee0: PC-AT compat > > cpu0 at mainbus0: apid 0 (boot processor) > > cpu0: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.85 MHz > > cpu0: > > > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFL > > >USH,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,DEADLI > >NE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS > > 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 2 (application processor) > > cpu1: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 MHz > > cpu1: > > > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFL > > >USH,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,DEADLI > >NE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS > > cpu1: 256KB 64b/line 8-way L2 cache > > cpu1: smt 0, core 1, package 0 > > cpu2 at mainbus0: apid 1 (application processor) > > cpu2: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 MHz > > cpu2: > > > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFL > > >USH,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,DEADLI > >NE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS > > cpu2: 256KB 64b/line 8-way L2 cache > > cpu2: smt 1, core 0, package 0 > > cpu3 at mainbus0: apid 3 (application processor) > > cpu3: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 MHz > > cpu3: > > > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFL > > >USH,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,DEADLI > >NE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS > > cpu3: 256KB 64b/line 8-way L2 cache > > cpu3: smt 1, core 1, package 0 > > ioapic0 at mainbus0: apid 2 pa 0xfec0, versi
Re: softeaid rebuild very slow
On Sun, 13 Apr 2014, John Cox wrote: > Hi > > I'm running OpenBSD 5.4 (dmesg below) with softraid in mirror mode. > One of the drives failed so I replaced it - the first time that RAID > has actually saved my data as opposed to simply making my life harder! > Thank you softraid. > > They are 3T drives and it looks like the rebuild is going to take ~5 > days to do. Is this expected? Is there any config parameter that I > should have set up to improve performance? 5 days = ~7MBytes / sec > and I know the drives can run a lot faster than that. The current code is designed to be robust rather than fast - it does a read from one of the online chunks (in this case you presumably only have one of those) and then does a write to all chunks (including both the online ones and the rebuilding one). In order to speed things up you want to read from one online chunk and only write to the chunk that needs rebuilding - the problem with this is that you need to prevent changes to the blocks that you are rebuilding until that write completes. Unfortunately that means some more restructing and additional code, plus a whole bunch of testing... > Can I reboot the system during the rebuild or if I do will it start at > the beginning again? I could try it but I'm now about 3 days in and > don't wish to waste it. The rebuild progress is stored in the softraid metadata - if you reboot (or even if the power goes out) it should pick up where it left off and complete the rebuild. > #dmesg > OpenBSD 5.4 (GENERIC.MP) #41: Tue Jul 30 15:30:02 MDT 2013 > dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP > real mem = 16973672448 (16187MB) > avail mem = 16514109440 (15749MB) > mainbus0 at root > bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xec420 (81 entries) > bios0: vendor Intel Corp. version "MKQ7710H.86A.0065.2014.0318.1044" > date 03/18/2014 > bios0: Intel Corporation DQ77MK > acpi0 at bios0: rev 2 > acpi0: sleep states S0 S3 S4 S5 > acpi0: tables DSDT FACP APIC FPDT TCPA MCFG HPET SSDT SSDT SSDT DMAR > ASF! > acpi0: wakeup devices PS2K(S3) PS2M(S3) UAR1(S3) P0P1(S4) USB1(S3) > USB2(S3) USB3(S3) USB4(S3) USB5(S3) USB6(S3) USB7(S3) PXSX(S4) > RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) [...] > acpitimer0 at acpi0: 3579545 Hz, 24 bits > acpimadt0 at acpi0 addr 0xfee0: PC-AT compat > cpu0 at mainbus0: apid 0 (boot processor) > cpu0: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.85 MHz > cpu0: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFL >USH,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,DEADLI >NE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS > 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 2 (application processor) > cpu1: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 MHz > cpu1: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFL >USH,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,DEADLI >NE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS > cpu1: 256KB 64b/line 8-way L2 cache > cpu1: smt 0, core 1, package 0 > cpu2 at mainbus0: apid 1 (application processor) > cpu2: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 MHz > cpu2: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFL >USH,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,DEADLI >NE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS > cpu2: 256KB 64b/line 8-way L2 cache > cpu2: smt 1, core 0, package 0 > cpu3 at mainbus0: apid 3 (application processor) > cpu3: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 MHz > cpu3: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFL >USH,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,DEADLI >NE,AES,XSAVE,AVX,F16C,RDRAND,NXE,LONG,LAHF,PERF,ITSC,FSGSBASE,SMEP,ERMS > cpu3: 256KB 64b/line 8-way L2 cache > cpu3: smt 1, core 1, package 0 > ioapic0 at mainbus0: apid 2 pa 0xfec0, version 20, 24 pins > acpimcfg0 at acpi0 addr 0xf800, bus 0-63 > acpihpet0 at acpi0: 14318179 Hz > acpiprt0 at acpi0: bus 0 (PCI0) > acpiprt1 at acpi0: bus 3 (P0P1) > acpiprt2 at acpi0: bus 1 (RP01) > acpiprt3 at acpi0: bus -1 (RP02) > acpiprt4 at acpi0: bus -1 (RP03) > acpiprt5 at acpi0: bus -1 (RP04) > acpiprt6 at acpi0: bus -1 (RP05) > acpiprt7 at acpi0: bus -1 (RP06) > acpiprt8 at acpi0: bus 2 (RP07) > acpiprt9 at acpi0: bus -1 (RP08) > acpiprt10 at acpi0: bus -1 (PEG0) > acpiprt11 at acpi0: bus -1 (PEG1) > acpiprt12 at acpi0: bus -1 (PEG2) > acpiprt13 at acpi0: bus -1 (PEG3) > acpiec0 at acpi0: F
Re: softeaid rebuild very slow
On Sun, Apr 13, 2014 at 5:22 AM, John Cox wrote: > Hi > > I'm running OpenBSD 5.4 (dmesg below) with softraid in mirror mode. > One of the drives failed so I replaced it - the first time that RAID > has actually saved my data as opposed to simply making my life harder! > Thank you softraid. > > They are 3T drives and it looks like the rebuild is going to take ~5 > days to do. Is this expected? Is there any config parameter that I > should have set up to improve performance? 5 days = ~7MBytes / sec > and I know the drives can run a lot faster than that. > > Can I reboot the system during the rebuild or if I do will it start at > the beginning again? I could try it but I'm now about 3 days in and > don't wish to waste it. As I've seen in my testing you _can_ reboot/poweroff the machine and you won't lose rebuild progress. > Many thanks
softeaid rebuild very slow
Hi I'm running OpenBSD 5.4 (dmesg below) with softraid in mirror mode. One of the drives failed so I replaced it - the first time that RAID has actually saved my data as opposed to simply making my life harder! Thank you softraid. They are 3T drives and it looks like the rebuild is going to take ~5 days to do. Is this expected? Is there any config parameter that I should have set up to improve performance? 5 days = ~7MBytes / sec and I know the drives can run a lot faster than that. Can I reboot the system during the rebuild or if I do will it start at the beginning again? I could try it but I'm now about 3 days in and don't wish to waste it. Many thanks John Cox #dmesg OpenBSD 5.4 (GENERIC.MP) #41: Tue Jul 30 15:30:02 MDT 2013 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 16973672448 (16187MB) avail mem = 16514109440 (15749MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xec420 (81 entries) bios0: vendor Intel Corp. version "MKQ7710H.86A.0065.2014.0318.1044" date 03/18/2014 bios0: Intel Corporation DQ77MK acpi0 at bios0: rev 2 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP APIC FPDT TCPA MCFG HPET SSDT SSDT SSDT DMAR ASF! acpi0: wakeup devices PS2K(S3) PS2M(S3) UAR1(S3) P0P1(S4) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB5(S3) USB6(S3) USB7(S3) PXSX(S4) RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) [...] acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee0: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.85 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 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 2 (application processor) cpu1: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 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 cpu1: 256KB 64b/line 8-way L2 cache cpu1: smt 0, core 1, package 0 cpu2 at mainbus0: apid 1 (application processor) cpu2: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 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,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 cpu2: 256KB 64b/line 8-way L2 cache cpu2: smt 1, core 0, package 0 cpu3 at mainbus0: apid 3 (application processor) cpu3: Intel(R) Core(TM) i5-3470T CPU @ 2.90GHz, 2893.43 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,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 cpu3: 256KB 64b/line 8-way L2 cache cpu3: smt 1, core 1, package 0 ioapic0 at mainbus0: apid 2 pa 0xfec0, version 20, 24 pins acpimcfg0 at acpi0 addr 0xf800, bus 0-63 acpihpet0 at acpi0: 14318179 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 3 (P0P1) acpiprt2 at acpi0: bus 1 (RP01) acpiprt3 at acpi0: bus -1 (RP02) acpiprt4 at acpi0: bus -1 (RP03) acpiprt5 at acpi0: bus -1 (RP04) acpiprt6 at acpi0: bus -1 (RP05) acpiprt7 at acpi0: bus -1 (RP06) acpiprt8 at acpi0: bus 2 (RP07) acpiprt9 at acpi0: bus -1 (RP08) acpiprt10 at acpi0: bus -1 (PEG0) acpiprt11 at acpi0: bus -1 (PEG1) acpiprt12 at acpi0: bus -1 (PEG2) acpiprt13 at acpi0: bus -1 (PEG3) acpiec0 at acpi0: Failed to read resource settings acpicpu0 at acpi0: C2, C1, PSS acpicpu1 at acpi0: C2, C1, PSS acpicpu2 at acpi0: C2, C1, PSS acpicpu3 at acpi0: C2, C1, PSS acpipwrres0 at acpi0: FN00 acpipwrres1 at acpi0: FN01 acpipwrres2 at acpi0: FN02 acpipwrres3 at acpi0: FN03 acpipwrres4 at acpi0: FN04 acpitz0 at acpi0: critical temperature is 92 degC acpitz1 at acpi0: critical temperature is 92 degC acpibat0 at acpi0: BAT0 not present acpibat1 at acpi0: BAT1 not present acpibat2 at acpi0: BAT2 not present acpibtn0 at acpi0: PWRB acpibtn1 at acpi0: LID0 acpivideo0 at acpi0: GFX0 acpivout0 at acpivideo0: DD01 acpivout1 at acpivideo0: DD02 acpivout2 at acpivideo0: DD03 acpivout3 at acpivideo0: DD04 acpivout4 at acpivideo0: DD05 acpivout5 at acpivideo0: DD06 acpivout6 at acpivideo0: DD07 acpivout7 at acpivideo0: DD08 cpu0: Enhanced SpeedStep 2893 MHz: speeds: 2901, 2900, 2800, 2700, 2600, 2500, 2400, 2300, 2200, 2100, 2000, 1900, 1800, 1700, 1600 MHz pci0 at main
