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Kernel instrumentation question
- To: ecos-discuss at sources dot redhat dot com
- Subject: [ECOS] Kernel instrumentation question
- From: Grant Edwards <grante at visi dot com>
- Date: Wed, 10 Oct 2001 15:10:34 -0500
Hi,
I configured my kernel to instrument clock, thread, alarm class
events. Should the timestamps in the buffer be in
non-decreasing order? When I display the instrument buffer,
the timestamps seem odd:
{{type = 257, thread = 3, timestamp = 5252, arg1 = 2, arg2 = 0},
{type = 258, thread = 3, timestamp = 6043, arg1 = 2, arg2 = 0},
{type = 2050, thread = 3, timestamp = 6987, arg1 = 131, arg2 = 0},
{type = 2051, thread = 3, timestamp = 1499, arg1 = 0, arg2 = 0},
{type = 258, thread = 3, timestamp = 3226, arg1 = 1, arg2 = 0},
{type = 2049, thread = 3, timestamp = 4497, arg1 = 131, arg2 = 0},
{type = 257, thread = 3, timestamp = 5251, arg1 = 2, arg2 = 0},
{type = 258, thread = 3, timestamp = 6042, arg1 = 2, arg2 = 0},
{type = 2050, thread = 3, timestamp = 6986, arg1 = 132, arg2 = 0},
{type = 2051, thread = 3, timestamp = 1496, arg1 = 0, arg2 = 0},
{type = 258, thread = 3, timestamp = 3221, arg1 = 1, arg2 = 0},
{type = 2049, thread = 3, timestamp = 4492, arg1 = 132, arg2 = 0},
{type = 257, thread = 3, timestamp = 5249, arg1 = 2, arg2 = 0},
{type = 258, thread = 3, timestamp = 6040, arg1 = 2, arg2 = 0},
{type = 2050, thread = 3, timestamp = 6984, arg1 = 133, arg2 = 0},
{type = 2051, thread = 3, timestamp = 1501, arg1 = 0, arg2 = 0},
{type = 258, thread = 3, timestamp = 3226, arg1 = 1, arg2 = 0},
{type = 2049, thread = 3, timestamp = 4497, arg1 = 133, arg2 = 0},
[...]
--
Grant Edwards
grante@visi.com