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Hi!
We have a couple of servers running as openvz guests and on bare metal. Some of them are much slower due to a high latency when calling even very small pages. The strace output (see below) suggests, that the interpreters are initialized on each call. There have been problems in some kernels with leap seconds, so we followed the advice found on the web and updated the kernels. The problem is still there. On one machine I've compiled the latest AOLserver version from git, still with the same problem. Systems with these kernel are working fine: Linux 2.6.32-238.9.1.el5.028stab089.1 Linux 2.6.32-5-openvz-amd64 Systems with these not: Linux 2.6.32-5-openvz-amd64 Linux 2.6.26-1-amd64 Has anybody encountered this problem as well? Regards, Wolfgang futex(0x12fd118, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd1d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd1d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd098, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd118, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd118, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x1339b24, FUTEX_WAIT_PRIVATE, 1893, NULL) = 0 futex(0x1357610, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x1339b24, FUTEX_WAIT_PRIVATE, 1895, NULL) = 0 futex(0x1357610, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x1339b24, FUTEX_WAIT_PRIVATE, 1897, NULL) = 0 futex(0x1357610, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x1339aa4, FUTEX_CMP_REQUEUE_PRIVATE, 1, 2147483647, 0x1357610, 2640) = 3 futex(0x1357610, FUTEX_WAKE_PRIVATE, 1) = 1 madvise(0x7fb9fe647000, 5615616, MADV_DONTNEED) = 0 futex(0x12fd218, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd218, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd1d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd1d8, FUTEX_WAKE_PRIVATE, 1) = 0 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 uname({sys="Linux", node="peregrin-04-vhost-01", ...}) = 0 getuid() = 1001 open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 32 lseek(32, 0, SEEK_CUR) = 0 fstat(32, {st_mode=S_IFREG|0644, st_size=1525, ...}) = 0 mmap(NULL, 1525, PROT_READ, MAP_SHARED, 32, 0) = 0x7fba13fff000 lseek(32, 1525, SEEK_SET) = 1525 munmap(0x7fba13fff000, 1525) = 0 close(32) = 0 futex(0x12fd0d8, FUTEX_WAIT_PRIVATE, 2, NULL) = 0 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 0 lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat("/usr/local", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0 lstat("/usr/local/lib", {st_mode=S_IFDIR|S_ISGID|0775, st_size=4096, ...}) = 0 lstat("/usr/local/lib/tcl8.5", {st_mode=S_IFDIR|S_ISGID|0755, st_size=4096, ...}) = 0 access("/usr/local/lib/tcl8.5/init.tcl", F_OK) = 0 stat("/usr/local/lib/tcl8.5/init.tcl", {st_mode=S_IFREG|0644, st_size=25031, ...}) = 0 open("/usr/local/lib/tcl8.5/init.tcl", O_RDONLY) = 32 fcntl(32, F_SETFD, FD_CLOEXEC) = 0 ioctl(32, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fba5745f7c0) = -1 ENOTTY (Inappropriate ioctl for device) read(32, "# init.tcl --\n#\n# Default system"..., 4096) = 4096 read(32, "cmd.exe\n\t\t} else {\n\t\t set env"..., 4096) = 4096 read(32, "} {\n\t\tset ::errorInfo $savedErro"..., 4096) = 4096 read(32, " error \"invalid command name \\\"$"..., 4096) = 4096 read(32, "(making sure that foo:::::bar wi"..., 4096) = 4096 read(32, " {[info exists env(WINDIR)]} {\n\t"..., 4096) = 4096 read(32, "verlapping.\n # \n # On Unix"..., 4096) = 455 read(32, "", 4096) = 0 close(32) = 0 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x12fd0d8, FUTEX_WAKE_PRIVATE, 1) = 1 Am 2013-04-23 17:12, schrieb Ulf Meyer: Hallo Wolfgang, Tommaso erzählte mir es gäbe bei euch gewisse Serverprobleme. Irgendetwas von zyklischen Aussetzern im 400ms Bereich … Können wir helfen ?Melde dich doch einfach bei mir ? Gruß Ulf --
Wolfgang Winkler |
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