Re: OpenBSD UEFI on QEMU emulator
On 10/22/2020 11:22 PM, Jonathan Gray wrote: On Thu, Oct 22, 2020 at 10:37:31PM -0400, Brad Smith wrote: On 10/22/2020 9:59 PM, Kevin Shell wrote: Hello misc@. I want to try out OpenBSD UEFI. How to install OpenBSD with UEFI boot on qemu? The installer does prompt you during disk setup. The install68.iso has no UEFI support. This is not true. It does not include a fat fs el torito image with efiboot only cdbr for mbr. Ya, my bad. I interpreted what he meant there differently. I thought he was implying there was no EFI support at all post-install. On any X86 hardware where I don't run Windows I typically keep CSM enabled. As I find I am more likely to have to boot something that still requires MBR like from a USB key to do firmware updates, though I have seen some EFI compatible update images for some things. But I have heard of systems without CSM, since it is optional. I see how this would be an issue with EFI only environments.
Re: sysupgrade --download ?
Hi Theo, sorry, I missed that. I have associated "-n" with dry-run mode. Thanx for the hint Harri
Re: sysupgrade --download ?
Harald Dunkel wrote: > I stumbled over a bad mirror for sysupgrade. > > Would it be possibe to add an option "-d" to sysupgrade, to just > download and verify the required files? sysupgrade -n > A subsequent call without > "-d" should verify the signatures in the download directory again > and proceed. sysupgrade It already exists.
sysupgrade --download ?
Hi folks, I stumbled over a bad mirror for sysupgrade. Would it be possibe to add an option "-d" to sysupgrade, to just download and verify the required files? A subsequent call without "-d" should verify the signatures in the download directory again and proceed. I would like to make sure download works at usual business hours, and to do the "real upgrade" with minimal effort at night time when nobody gets disturbed by restarting the gateway. Just a suggestion, of course. Keep on your good work. Harri
Re: OpenBSD UEFI on QEMU emulator
On Fri, Oct 23, 2020 at 10:03:08PM -0400, Brad Smith wrote: > On 10/22/2020 11:22 PM, Jonathan Gray wrote: > > On Thu, Oct 22, 2020 at 10:37:31PM -0400, Brad Smith wrote: > > > On 10/22/2020 9:59 PM, Kevin Shell wrote: > > > > Hello misc@. > > > > > > > > I want to try out OpenBSD UEFI. > > > > How to install OpenBSD with UEFI boot on qemu? > > > The installer does prompt you during disk setup. > > > > The install68.iso has no UEFI support. > > > This is not true. > > It does not include a fat fs el torito image with efiboot only > > cdbr for mbr. > > Ya, my bad. I interpreted what he meant there differently. I thought he was > implying there was no EFI support at all post-install. On any X86 hardware > where I don't run Windows I typically keep CSM enabled. As I find I am more > likely to have to boot something that still requires MBR like from a USB key > to do firmware updates, though I have seen some EFI compatible update > images for some things. But I have heard of systems without CSM, since it is > optional. I see how this would be an issue with EFI only environments. > The OpenBSD .iso image file is not hybrid image(both BIOS/UEFI iso9660 and USB boot drive support), Linux, FreeBSD, NetBSD all produce hybrid iso images, I want to know why OpenBSD not do the same. :-) -- kevin
Re: OpenBSD UEFI on QEMU emulator
Why I keep received 2 copies email again? Please don't To or Cc me. :-) On Fri, Oct 23, 2020 at 07:58:27AM -0600, jpegb...@dismail.de wrote: > I would also like to point out that kevin doesn't have a virtual disk > to install openbsd to, just the openbsd iso. You can create one with > qemu-create I think, and then you should add that file to the drive > parameter aswell. I know. I just try out to see if OpenBSD can boot UEFI mode under qemu, so no need to create an image. I've booted OpenBSD under UEFI mode, but the font is very small, the qemu window is very tall, I can't see the bottom lines of texts.
Re: Sound/audio onFirefox on 6.8
On 23/10/2020, Duncan Patton a Campbell wrote: > > Hey Maurice. The audio works elsewhere and this looks to be > a Zombie Bugzilla bug come back from the dead. Something > about needing to directly link to sndio and skip the "cubeb" something... > > Dhu > Ah, so "works elsewhere" in your initial message refers to other programs running under OpenBSD not other operating systems. Warned you I was a numpty. In this case I'm completely clueless. That's normal for me. Good Luck
Re: OpenBSD UEFI on QEMU emulator
Please don't To or Cc me, I'm on the list. On Fri, Oct 23, 2020 at 12:49:13PM +0900, YASUOKA Masahiko wrote: > On Fri, 23 Oct 2020 09:59:24 +0800 > Kevin Shell wrote: > > I want to try out OpenBSD UEFI. > > How to install OpenBSD with UEFI boot on qemu? > > The install68.iso has no UEFI support. > > My following command on Linux can't boot OpenBSD UEFI. > > > > qemu-system-x86_64 -enable-kvm \ > >-machine q35 \ > >-cpu host \ > >-smp cores=4,threads=1 \ > >-m 1G \ > >-bios /usr/share/edk2/ovmf/OVMF_CODE.fd \ > >-drive file=install68.img,format=raw > > Does the drive of "install68.img" appear on the boot menu on BIOS? > Oh finally I figure out how to boot OpenBSD from the UEFI shell. But the qemu window gets very height and can't resize and I can't see the bottom lines of texts, the font is *really* small. > At least on my linux machine, > > qemu-system-x86_64 -machine q35 -smp cores=4,threads=1 -m 1G > -bios /usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd > -drive file=install68.img,format=raw > > doesn't boot as well. The drive doesn't appear on the boot menu. > But by removing "-machine q35" from the line, it booted successfully. Maybe removing "-machine q35" makes qemu works in BIOS compatible mode, not UEFI mode? -- kevin
Re: Sound/audio onFirefox on 6.8
Hey Maurice. The audio works elsewhere and this looks to be a Zombie Bugzilla bug come back from the dead. Something about needing to directly link to sndio and skip the "cubeb" something... Dhu This is what shows up on the command line: dhu@gate:BSD $ firefox [Child 41261, MediaDecoderStateMachine #1] WARNING: 4fb447d1100 Can't get cubeb context!: file /build/tmp/pobj/firefox-81.0.2/firefox-81.0.2/dom/media/AudioStream.cpp, line 298 [Child 41261, MediaDecoderStateMachine #1] WARNING: Decoder=4fb2109ec00 [OnMediaSinkAudioError]: file /build/tmp/pobj/firefox-81.0.2/firefox-81.0.2/dom/media/MediaDecoderStateMachine.cpp, line 3891 [Child 41261, MediaDecoderStateMachine #1] WARNING: Decoder=4fb6170e000 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /build/tmp/pobj/firefox-81.0.2/firefox-81.0.2/dom/media/MediaDecoderStateMachine.cpp, line 3470 [Child 41261, MediaDecoderStateMachine #1] WARNING: Decoder=4fb6170e000 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /build/tmp/pobj/firefox-81.0.2/firefox-81.0.2/dom/media/MediaDecoderStateMachine.cpp, line 3470 [Child 41261, MediaDecoderStateMachine #1] WARNING: Decoder=4fb6170e000 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /build/tmp/pobj/firefox-81.0.2/firefox-81.0.2/dom/media/MediaDecoderStateMachine.cpp, line 3470 [Child 41261, MediaDecoderStateMachine #1] WARNING: Decoder=4fb6170e000 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /build/tmp/pobj/firefox-81.0.2/firefox-81.0.2/dom/media/MediaDecoderStateMachine.cpp, line 3470 [Child 41261, MediaDecoderStateMachine #1] WARNING: Decoder=4fb6170e000 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /build/tmp/pobj/firefox-81.0.2/firefox-81.0.2/dom/media/MediaDecoderStateMachine.cpp, line 3470 On Fri, 23 Oct 2020 20:44:54 +0100 Maurice McCarthy wrote: > Warning: Numpty speaking > > Well this seems to give you access to audio hardware > > azalia1 at pci0 dev 20 function 2 "ATI SBx00 HD Audio" rev 0x40: apic 4 int 16 > azalia1: codecs: Realtek/0x0892 > audio0 at azalia1 > > So I can only point you at this > https://www.openbsd.org/faq/faq13.html#audioprob > > Good Luck > > -- Je suis Canadien. Ce n'est pas Francais ou Anglaise. C'est une esp`ece de sauvage: ne obliviscaris, vix ea nostra voco;-)
Re: Sound/audio onFirefox on 6.8
Warning: Numpty speaking Well this seems to give you access to audio hardware azalia1 at pci0 dev 20 function 2 "ATI SBx00 HD Audio" rev 0x40: apic 4 int 16 azalia1: codecs: Realtek/0x0892 audio0 at azalia1 So I can only point you at this https://www.openbsd.org/faq/faq13.html#audioprob Good Luck
Sound/audio onFirefox on 6.8
doesn't work. Works fine elsewhere. Granted this is also a ten year old board. following is dmesg. Any ideas are apreciated. Thanks, Dhu OpenBSD 6.8 (GENERIC.MP) #98: Sun Oct 4 18:13:26 MDT 2020 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 16894197760 (16111MB) avail mem = 16367153152 (15608MB) random: good seed from bootblocks mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.5 @ 0x9f000 (66 entries) bios0: vendor American Megatrends Inc. version "2301" date 08/09/2012 bios0: ASUSTeK Computer INC. M4A88TD-V EVO/USB3 acpi0 at bios0: ACPI 3.0 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP APIC MCFG OEMB SRAT HPET acpi0: wakeup devices PCE2(S4) PCE3(S4) PCE4(S4) PCE5(S4) PCE6(S4) PCE7(S4) PCE9(S4) PCEA(S4) PCEB(S4) PCEC(S4) SBAZ(S4) P0PC(S4) GEC_(S4) UHC1(S4) UHC2(S4) USB3(S4) [...] acpitimer0 at acpi0: 3579545 Hz, 32 bits acpimadt0 at acpi0 addr 0xfee0: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Phenom(tm) II X4 840 Processor, 3214.71 MHz, 10-05-03 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,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,ITSC cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu0: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu0: AMD erratum 721 detected and fixed cpu0: smt 0, core 0, package 0 mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 200MHz cpu0: mwait min=64, max=64, IBE cpu1 at mainbus0: apid 1 (application processor) cpu1: AMD Phenom(tm) II X4 840 Processor, 3214.30 MHz, 10-05-03 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,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,ITSC cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu1: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu1: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu1: AMD erratum 721 detected and fixed cpu1: smt 0, core 1, package 0 cpu2 at mainbus0: apid 2 (application processor) cpu2: AMD Phenom(tm) II X4 840 Processor, 3214.30 MHz, 10-05-03 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,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,ITSC cpu2: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu2: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu2: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu2: AMD erratum 721 detected and fixed cpu2: smt 0, core 2, package 0 cpu3 at mainbus0: apid 3 (application processor) cpu3: AMD Phenom(tm) II X4 840 Processor, 3214.31 MHz, 10-05-03 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,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,ITSC cpu3: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu3: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu3: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu3: AMD erratum 721 detected and fixed cpu3: smt 0, core 3, package 0 ioapic0 at mainbus0: apid 4 pa 0xfec0, version 21, 24 pins acpimcfg0 at acpi0 acpimcfg0: addr 0xe000, bus 0-255 acpihpet0 at acpi0: 14318180 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 1 (P0P1) acpiprt2 at acpi0: bus -1 (PCE2) acpiprt3 at acpi0: bus -1 (PCE3) acpiprt4 at acpi0: bus -1 (PCE4) acpiprt5 at acpi0: bus 2 (PCE9) acpiprt6 at acpi0: bus 3 (PCEA) acpiprt7 at acpi0: bus 4 (P0PC) acpiprt8 at acpi0: bus 6 (PE21) acpiec0 at acpi0 acpipci0 at acpi0 PCI0: 0x 0x0011 0x0001 acpicmos0 at acpi0 aibs0 at acpi0 RTMP RVLT RFAN GGRP GITM SITM acpibtn0 at acpi0: PWRB "PNP0C14" at acpi0 not configured acpicpu0 at acpi0: C1(@1 halt!) acpicpu1 at acpi0: C1(@1 halt!) acpicpu2 at acpi0: C1(@1 halt!) acpicpu3 at acpi0: C1(@1 halt!) pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "AMD RS880 Host" rev 0x00 ppb0 at pci0 dev 1 function 0 vendor "Asustek", unknown product 0x9602 rev 0x00 pci1 at ppb0 bus 1 radeondrm0 at pci1 dev 5 function 0 "ATI Radeon HD 4250" rev 0x00 drm0 at radeondrm0 radeondrm0: apic 4 int 18 azalia0 at pci1 dev 5 function 1 "ATI Radeon HD 4200 HD Audio" rev
Re: OpenBSD UEFI on QEMU emulator
I would also like to point out that kevin doesn't have a virtual disk to install openbsd to, just the openbsd iso. You can create one with qemu-create I think, and then you should add that file to the drive parameter aswell. YASUOKA Masahiko wrote: > On Fri, 23 Oct 2020 09:59:24 +0800 > Kevin Shell wrote: > > I want to try out OpenBSD UEFI. > > How to install OpenBSD with UEFI boot on qemu? > > The install68.iso has no UEFI support. > > My following command on Linux can't boot OpenBSD UEFI. > > > > qemu-system-x86_64 -enable-kvm \ > >-machine q35 \ > >-cpu host \ > >-smp cores=4,threads=1 \ > >-m 1G \ > >-bios /usr/share/edk2/ovmf/OVMF_CODE.fd \ > >-drive file=install68.img,format=raw > > Does the drive of "install68.img" appear on the boot menu on BIOS? > > At least on my linux machine, > > qemu-system-x86_64 -machine q35 -smp cores=4,threads=1 -m 1G > -bios /usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd > -drive file=install68.img,format=raw > > doesn't boot as well. The drive doesn't appear on the boot menu. > But by removing "-machine q35" from the line, it booted successfully.
sasyncd question
Hi, Is there a way to sync only SAs created on CARP interfaces, without syncing those created on physical, non-CARP interfaces? Something like no-sync option in pf.conf for pfsync? I'm asking because I have a pair of firewalls where majority of IPsec peers connect directly to non-CARP interfaces (GRE tunnels connected with transport mode IPsec + OSPF), and just a few of them connect to CARP interface (passive tunnel mode IPsec because of dynamic IP address on peers). sasyncd now syncs everything, so CARP peers get SAS for physical interfaces of other CARP member, which is undesirable, and I guess also prolongs time to re-negotiate SAs. Any other way how OpenBSD admins handle this situation? Thank you in advance, -- Before enlightenment - chop wood, draw water. After enlightenment - chop wood, draw water. Marko Cupać https://www.mimar.rs/
Re: Inphi CS4223 for 4x 10GbE SFP+
Hi folks, below you can find the summary of "openssl speed" on the network appliance. Speed is not amazing, but AFAIU "openssl speed" is single-threaded. The CPU has 8 cores (no hyperthreading). Assuming IPsec encryption/decryption is running in kernel space, I wonder if the OpenBSD kernel can make use of the 8 cores for running several IPsec connections in parallel? Does it use AES? Regards Harri Intel(R) Atom(TM) CPU C3758 @ 2.20GHz, 2195.40 MHz, 06-5f-01 8 cores LibreSSL 3.2.2 built on: date not available options:bn(64,64) rc4(16x,int) des(idx,cisc,16,int) aes(partial) idea(int) blowfish(idx) compiler: information not available The 'numbers' are in 1000s of bytes per second processed. type 16 bytes 64 bytes256 bytes 1024 bytes 8192 bytes md2 0.00 0.00 0.00 0.00 0.00 md4 13724.16k45836.82k 115244.57k 185000.74k 224988.79k md5 12057.24k44613.25k 136613.93k 278648.09k 399437.57k hmac(md5)12879.60k47239.51k 141646.50k 283716.38k 400684.06k sha1 14261.27k48934.66k 126469.61k 210988.57k 261128.85k rmd1607478.71k19132.30k36135.97k46448.78k50673.37k rc4 221676.80k 361020.98k 420244.07k 435180.27k 439858.69k des cbc 24940.07k25926.00k26213.89k26296.73k26323.26k des ede3 9125.12k 9257.70k 9296.80k 9306.83k 9310.58k idea cbc 19172.98k19989.11k20185.22k20235.06k20251.39k seed cbc 0.00 0.00 0.00 0.00 0.00 rc2 cbc 6654.11k 6724.98k 6744.20k 6749.21k 6752.28k rc5-32/12 cbc0.00 0.00 0.00 0.00 0.00 blowfish cbc 28152.30k29404.87k29758.43k29873.58k29907.60k cast cbc 32971.96k34915.95k35399.95k35561.38k35606.62k aes-128 cbc 42748.35k47506.54k49266.14k 123527.74k 124700.75k aes-192 cbc 36277.25k39905.49k41139.80k 103818.63k 105167.86k aes-256 cbc 31742.60k34425.15k35314.65k90007.22k90667.21k camellia-128 cbc45902.96k76808.12k92168.33k97341.92k 98943.57k camellia-192 cbc40179.04k62497.28k72516.04k75711.36k 76659.16k camellia-256 cbc40040.61k62499.19k72515.95k75711.36k 76678.21k sha256 17433.04k41804.06k73496.15k90807.03k97541.95k sha512 14251.64k57007.97k93895.44k 133096.53k 152066.38k whirlpool13191.30k28503.96k47912.31k57710.39k61385.57k aes-128 ige 42754.84k44870.36k45810.90k45989.51k46038.50k aes-192 ige 36277.18k38005.20k38754.83k38883.08k38926.97k aes-256 ige 31741.82k33237.39k33254.74k33254.83k33255.17k ghash 325142.67k 836113.05k 1256164.95k 1443524.30k 1517196.50k aes-128 gcm 42352.61k 149903.52k 379077.66k 617644.48k 751160.13k aes-256 gcm 40132.77k 141596.79k 342723.27k 538803.63k 641956.15k chacha20 poly130512735.36k48161.34k91694.86k 119161.28k 130459.64k signverifysign/s verify/s rsa 512 bits 0.000215s 0.23s 4643.0 44006.6 rsa 1024 bits 0.000546s 0.53s 1830.9 18834.8 rsa 2048 bits 0.003018s 0.000164s331.4 6113.8 rsa 4096 bits 0.028494s 0.000586s 35.1 1705.6 signverifysign/s verify/s dsa 512 bits 0.000324s 0.000219s 3083.5 4561.2 dsa 1024 bits 0.000518s 0.000409s 1929.2 2447.1 dsa 2048 bits 0.001207s 0.001104s828.6905.7 signverifysign/s verify/s 160 bit ecdsa (secp160r1) 0.0015s 0.0011s671.4870.5 192 bit ecdsa (nistp192) 0.0018s 0.0014s562.5724.7 224 bit ecdsa (nistp224) 0.0023s 0.0018s433.5569.6 256 bit ecdsa (nistp256) 0.0026s 0.0020s379.7503.0 384 bit ecdsa (nistp384) 0.0051s 0.0035s196.5284.0 521 bit ecdsa (nistp521) 0.0102s 0.0066s 97.8151.6 163 bit ecdsa (nistk163) 0.0085s 0.0058s118.3171.9 233 bit ecdsa (nistk233) 0.0208s 0.0142s 48.0 70.4 283 bit ecdsa (nistk283) 0.0355s 0.0237s 28.1 42.2 409 bit ecdsa (nistk409) 0.0970s 0.0646s 10.3 15.5 571 bit ecdsa (nistk571) 0.2271s 0.1517s 4.4 6.6 163 bit ecdsa (nistb163) 0.0084s 0.0056s118.6177.1 233 bit ecdsa (nistb233) 0.0208s 0.0140s 48.2 71.3 283 bit ecdsa (nistb283) 0.0355s 0.0242s 28.1 41.3 409 bit ecdsa (nistb409) 0.0972s 0.0646s 10.3 15.5 571 bit ecdsa (nistb571) 0.2267s 0.1518s 4.4 6.6 op op/s 160 bit ecdh (secp160r1) 0.0013s774.4 192 bit ecdh (nistp192) 0.0015s648.7 224 bit ecdh (nistp224) 0.0020s492.4 256 bit ecdh (ni
kqueue/kevent: EVFILT_TIMER inacurracy
Given the following code (timertest.c):
#include
#include
#include
#include
#include
#include
#include
#include
int
main(int argc, char *argv[])
{
long longtimeout, elapsed;
int kqfd;
struct timespec ts0, ts;
struct keventkev;
if (argc < 2)
errx(1, "missing number of seconds");
timeout = atoll(argv[1]) * 1000;
if (errno || timeout <= 0)
err(1, "invalid number of seconds");
if ((kqfd = kqueue()) == -1)
err(1, "kqueue");
EV_SET(&kev, , EVFILT_TIMER, EV_ADD, 0, timeout, NULL);
if (clock_gettime(CLOCK_REALTIME, &ts0) == -1)
err(1, "clock_gettime");
if (kevent(kqfd, &kev, 1, NULL, 0, NULL) == -1)
err(1, "kevent");
printf("timer [%lld msec] started ... ", timeout);
fflush(stdout);
memset(&kev, 0, sizeof(kev));
if (kevent(kqfd, NULL, 0, &kev, 1, NULL) == -1)
err(1, "kevent");
if (kev.flags & EV_ERROR)
errx(1, "event error (%llu)", kev.data);
if (clock_gettime(CLOCK_REALTIME, &ts) == -1)
err(1, "clock_gettime");
timespecsub(&ts, &ts0, &ts);
elapsed = ts.tv_sec * 1000 + ts.tv_nsec / 100L;
printf("done\ntime elapsed: %lld msec\n>>> drift: %lld msec\n",
elapsed, elapsed - timeout);
return (0);
}
# cc timertest.c -o timertest
On an older machine, there is a noticeable clock drift:
# ./timertest 600
timer [60 msec] started ... done
time elapsed: 624008 msec
>>> drift: 24008 msec
On an idle VM, the drift is below noise...
# ./timertest 600
timer [60 msec] started ... done
time elapsed: 68 msec
>>> drift: 8 msec
... the same VM under 50% CPU load:
# ./timertest 600
timer [60 msec] started ... done
time elapsed: 609704 msec
>>> drift: 9704 msec
Is it the way I'm using kevent/EVFILT_TIMER?
Any help is being appreciated.
