2 <description>The timer facility has events related to timer events in the kernel.
</description>
5 <description>A timer or itimer has expired.
</description>
7 <field name=
"pid"> <description>PID of the process to wake up.
</description> <uint size=
4/> </field>
12 <description>The timer softirq is currently runned.
</description>
15 <event name=set_itimer
>
16 <description>An interval timer is set.
</description>
18 <field name=
"which"> <description>kind of interval timer.
</description>
19 <typeref name=itimer_kind
/></field>
20 <field name=
"interval_seconds"><uint size=
4/></field>
21 <field name=
"interval_microseconds"><uint size=
4/></field>
22 <field name=
"value_seconds"><uint size=
4/></field>
23 <field name=
"value_microseconds"><uint size=
4/></field>
27 <type name=itimer_kind
>
29 <label name=ITIMER_REAL value=
0/> <description>decrements in real time,
30 and delivers SIGALRM upon expiration.
</description>
31 <label name=ITIMER_VIRTUAL value=
1/> <description>decrements only when the
32 process is executing, and delivers SIGVTALRM upon expiration.
</description>
33 <label name=ITIMER_PROF value=
2/> <description>decrements both when the
34 process executes and when the system is executing on behalf of the
35 process. Coupled with ITIMER_VIRTUAL, this timer is usually used to
36 profile the time spent by the application in user and kernel space.
37 SIGPROF is delivered upon expiration.
</description>