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Diffstat (limited to 'lib/ChangeLog')
| -rw-r--r-- | lib/ChangeLog | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/ChangeLog b/lib/ChangeLog index 65abfd03..8da9870e 100644 --- a/lib/ChangeLog +++ b/lib/ChangeLog @@ -1,5 +1,52 @@ 2005-04-27 Andrew J. Schorr <ajschorr@alumni.princeton.edu> + Add wall-clock timing statistics to 'show thread cpu' output. + * thread.h: Define struct rusage_t to contain wall-clock time + and cpu time. Change GETRUSAGE macro to collect both pieces + of data. Make appropriate changes to struct cpu_thread_history + to track CPU time and real time. Change proto for + thread_consumed_time to return real and cpu time elapsed. + And declare a new global variable 'struct timeval recent_time'. + * thread.c (struct timeval recent_time): New global timestamp variable. + (timeval_adjust): If timeout is negative, set to 0 (not 10 + microseconds). And remove upper bound of 1,000,000 seconds, since + this does not seem to make any sense (and it breaks + funcname_thread_add_timer_timeval). + (timeval_cmp): Should return long, not int. + (vty_out_cpu_thread_history): Show CPU time and real time. + (cpu_record_hash_print): Calculate totals for CPU and real time. + (cpu_record_print): Change 'show thread cpu' title to show CPU and + real time. + (thread_timer_remain_second): Put current time in global recent_time. + (funcname_thread_add_timer_timeval): Fix assert. Replace 2-case + switch assignment with a ternary expression. Use global recent_time + variable. Fix use of timeval_adjust (previously, the value was not + actually being adjusted). + (thread_cancel): Add missing "break" statement in case + THREAD_BACKGROUND. + (thread_timer_wait): Use global recent_time value instead of calling + gettimeofday. And there's no need to check for negative timeouts, + since timeval_subtract already sets these to zero. + (thread_timer_process): Timers are sorted, so bail out once we + encounter a timer that has not yet popped. And remove some + extraneous asserts. + (thread_fetch): Do not process foreground timers before calling + select. Instead, add them to the ready list just after the select. + Also, no need to maintain a count of the number of ready threads, + since we don't care how many there are, just whether there's + one at the head of the ready list (which is easily checked). + Stick current time in global variable recent_time to reduce + the number of calls to gettimeofday. Tighten logic for + calculating the select timeout. + (thread_consumed_time): Now returns real time and puts the elapsed + cpu time in an additional argument. + (thread_should_yield): Use real (wall-clock) time to decide whether + to yield. + (thread_call): Maintain CPU and real time statistics. + * vty.c (vty_command): For slow commands, show real and cpu time. + +2005-04-27 Andrew J. Schorr <ajschorr@alumni.princeton.edu> + * workqueue.c (show_work_queues): Remove unused gettimeofday call. 2005-04-27 Paul Jakma <paul.jakma@sun.com> |