diff options
Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/manual-review/1826393')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/manual-review/1826393 | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/manual-review/1826393 b/results/classifier/deepseek-2-tmp/output/manual-review/1826393 deleted file mode 100644 index d0bdaf81..00000000 --- a/results/classifier/deepseek-2-tmp/output/manual-review/1826393 +++ /dev/null @@ -1,81 +0,0 @@ - -QEMU 3.1.0 stuck waiting for 800ms (5 times slower) in pre-bios phase - -Yesterday I have upgraded my laptop from Ubuntu 18.10 to 19.04 and that way got newer QEMU 3.1.0 along vs QEMU 2.12.0 before. I have noticed that everytime I start QEMU to run OSv, QEMU seems to hand noticably longer (~1 second) before showing SeaBIOS output. I have tried all kind of combinations to get rid of that pause and nothing helped. - -Here is my start command: -time qemu-system-x86_64 -m 256M -smp 1 -nographic -nodefaults \ - -device virtio-blk-pci,id=blk0,bootindex=0,drive=hd0,scsi=off \ - -drive file=usr.img,if=none,id=hd0,cache=none,aio=thre\ - -enable-kvm \ - -cpu host,+x2apic -chardev stdio,mux=on,id=stdio,signal=off \ - -mon chardev=stdio,mode=readline -device isa-serial,chardev=stdio - -It looks like qemu process starts, waits almost a second for something and then print SeaBIOS splashscreen and continues boot: - ---> waits here -SeaBIOS (version 1.12.0-1) -Booting from Hard Disk..OSv v0.53.0-6-gc8395118 - disk read (real mode): 27.25ms, (+27.25ms) - uncompress lzloader.elf: 46.22ms, (+18.97ms) - TLS initialization: 46.79ms, (+0.57ms) - .init functions: 47.82ms, (+1.03ms) - SMP launched: 48.08ms, (+0.26ms) - VFS initialized: 49.25ms, (+1.17ms) - Network initialized: 49.48ms, (+0.24ms) - pvpanic done: 49.57ms, (+0.08ms) - pci enumerated: 52.42ms, (+2.85ms) - drivers probe: 52.42ms, (+0.00ms) - drivers loaded: 55.33ms, (+2.90ms) - ROFS mounted: 56.37ms, (+1.04ms) - Total time: 56.37ms, (+0.00ms) -Found optarg -dev etc hello libenviron.so libvdso.so proc tmp tools usr - -real 0m0.935s -user 0m0.426s -sys 0m0.490s - -With version 2.12.0 I used to see real below 200ms. So it seems qemu slowed down 5 times. - -I ran strace -tt against it and I have noticed a pause here: -... -07:31:41.848579 futex(0x55c4a2fd34c0, FUTEX_WAKE_PRIVATE, 1) = 0 -07:31:41.848604 futex(0x55c4a2ff6308, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 -07:31:41.848649 ioctl(10, KVM_SET_PIT2, 0x7ffdd272d1f0) = 0 -07:31:41.848674 ioctl(9, KVM_CHECK_EXTENSION, KVM_CAP_KVMCLOCK_CTRL) = 1 -07:31:41.848699 ioctl(10, KVM_SET_CLOCK, 0x7ffdd272d230) = 0 -07:31:41.848724 futex(0x55c4a49a9a9c, FUTEX_WAKE_PRIVATE, 2147483647) = 1 -07:31:41.848747 getpid() = 5162 -07:31:41.848769 tgkill(5162, 5166, SIGUSR1) = 0 -07:31:41.848791 futex(0x55c4a2fd34c0, FUTEX_WAKE_PRIVATE, 1) = 0 -07:31:41.848814 futex(0x55c4a49a9a98, FUTEX_WAKE_PRIVATE, 2147483647) = 1 -07:31:41.848837 getpid() = 5162 -07:31:41.848858 tgkill(5162, 5166, SIGUSR1) = 0 -07:31:41.848889 write(8, "\1\0\0\0\0\0\0\0", 8) = 8 -07:31:41.848919 futex(0x55c4a2fd34c0, FUTEX_WAKE_PRIVATE, 1) = 1 -07:31:41.848943 ppoll([{fd=0, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}, -{fd=8, events=POLLIN}], 5, {tv_sec=0, tv_nsec=0}, NULL, 8) = 1 ([{fd=8, revents=POLLIN}], left {tv_sec=0, tv_nsec=0 -}) -07:31:41.849003 futex(0x55c4a2fd34c0, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) -07:31:41.849031 read(8, "\5\0\0\0\0\0\0\0", 16) = 8 -07:31:41.849064 futex(0x55c4a2fd34c0, FUTEX_WAKE_PRIVATE, 1) = 0 -07:31:41.849086 ppoll([{fd=0, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}, -{fd=8, events=POLLIN}], 5, {tv_sec=0, tv_nsec=984624000}, NULL, 8) = 1 ([{fd=7, revents=POLLIN}], left {tv_sec=0, t -v_nsec=190532609}) - ---> waits for almost 800ms - -07:31:42.643272 futex(0x55c4a2fd34c0, FUTEX_WAIT_PRIVATE, 2, NULL) = 0 -07:31:42.643522 read(7, "\1\0\0\0\0\0\0\0", 512) = 8 -07:31:42.643625 futex(0x55c4a2fd34c0, FUTEX_WAKE_PRIVATE, 1) = 1 -07:31:42.643646 ppoll([{fd=0, events=POLLIN}, {fd=4, events=POLLIN}, {fd=5, events=POLLIN}, {fd=7, events=POLLIN}, -{fd=8, events=POLLIN}], 5, {tv_sec=0, tv_nsec=190066000}, NULL, 8) = 2 ([{fd=4, revents=POLLIN}, {fd=8, revents=POL -LIN}], left {tv_sec=0, tv_nsec=189909632}) -07:31:42.643836 futex(0x55c4a2fd34c0, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) -07:31:42.643859 read(8, "\2\0\0\0\0\0\0\0", 16) = 8 -07:31:42.643880 futex(0x55c4a2fd34c0, FUTEX_WAKE_PRIVATE, 1) = 1 - -... - -when I run same command using qemu 3.0.5 that I still happen to have on the same machine that I built directly from source I see total boot time at around 200ms. It seems like a regression. \ No newline at end of file |