That sets ITIMER_PROF with 1 microsecond interval. Kernel will try to deliver a
SIGPROF signal every microsecond. Depending on other factors, a process may
get anywhere from __profile_frequency () to 1000000 SIGPROF signals per second.
Summary: Wrong frequency setting for ITIMER_PROF
AssignedTo: drepper at redhat dot com
ReportedBy: hjl at lucon dot org
CC: glibc-bugs at sources dot redhat dot com