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    SubjectRe: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3
    On Thu, Mar 01, 2007 at 12:14:44PM +0100, Eric Dumazet (dada1@cosmosbay.com) wrote:
    > On Thursday 01 March 2007 11:59, Evgeniy Polyakov wrote:
    >
    > > Yes, it is about 98-100% in both cases.
    > > I've just re-run tests on my amd64 test machine without debug options:
    > >
    > > epoll 4794.23
    > > kevent 6468.95
    > >
    >
    > It would be valuable if you could post oprofile results (CPU_CLK_UNHALTED) for
    > both tests.

    I can't - oprofile does not work on this x86_64 machine:

    #opcontrol --setup --vmlinux=/home/s0mbre/aWork/git/linux-2.6.kevent/vmlinux
    # opcontrol --start
    Using default event: CPU_CLK_UNHALTED:100000:0:1:1
    /usr/bin/opcontrol: line 994: /dev/oprofile/0/enabled: No such file or
    directory
    /usr/bin/opcontrol: line 994: /dev/oprofile/0/event: No such file or
    directory
    /usr/bin/opcontrol: line 994: /dev/oprofile/0/count: No such file or
    directory
    /usr/bin/opcontrol: line 994: /dev/oprofile/0/kernel: No such file or
    directory
    /usr/bin/opcontrol: line 994: /dev/oprofile/0/user: No such file or
    directory
    /usr/bin/opcontrol: line 994: /dev/oprofile/0/unit_mask: No such file or
    directory

    # ls -l /dev/oprofile/
    total 0
    drwxr-xr-x 1 root root 0 2007-03-01 09:41 1
    drwxr-xr-x 1 root root 0 2007-03-01 09:41 2
    drwxr-xr-x 1 root root 0 2007-03-01 09:41 3
    -rw-r--r-- 1 root root 0 2007-03-01 09:41 backtrace_depth
    -rw-r--r-- 1 root root 0 2007-03-01 09:41 buffer
    -rw-r--r-- 1 root root 0 2007-03-01 09:41 buffer_size
    -rw-r--r-- 1 root root 0 2007-03-01 09:41 buffer_watershed
    -rw-r--r-- 1 root root 0 2007-03-01 09:41 cpu_buffer_size
    -rw-r--r-- 1 root root 0 2007-03-01 09:41 cpu_type
    -rw-rw-rw- 1 root root 0 2007-03-01 09:41 dump
    -rw-r--r-- 1 root root 0 2007-03-01 09:41 enable
    -rw-r--r-- 1 root root 0 2007-03-01 09:41 pointer_size
    drwxr-xr-x 1 root root 0 2007-03-01 09:41 stats

    > Thank you

    --
    Evgeniy Polyakov
    -
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