Health-check – A tool to diagnose resource usage
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Health-check can monitor:
CPU utilisation
Wakeup events
Context Switches
File I/O operations (Open/Read/Write/Close using fnotify)
System calls (using ptrace)
Analysis of polling system calls
Memory utilisation (including memory growth)
Network connections
Wakelock activity
..and can also dump the stats into a JSON formatted file for later analysis.
Install health-check on ubuntu
Open the terminal and run the following commands
sudo add-apt-repository ppa:colin-king/white
sudo apt-get update
sudo apt-get install health-check
Health-check command line options:
-b brief (simple mode) output
-c trace all child processes
-d duration of the test in sections
-p comma separated list of process IDs or process names to trace
-m maximum number of system calls to trace before stopping (default 1 million)
-o JSON output file
-r resolve IP addresses (may take a while to do)
Example Output:
sudo ./health-check -p camera-app -c -d 60
CPU usage:
PID Process USR% SYS% TOTAL%
3585 camera-app 18.97 16.93 35.90 (medium load)
Wakeups:
PID Process Wake/Sec Kernel Functions
3608 camera-app 13.62 (add_timer, OSTimerCallbackWrapper) (high)
3589 camera-app 3.17 (hrtimer_start_range_ns, hrtimer_wakeup) (moderate)
3608 camera-app 0.37 (schedule_timeout_uninterruptible, process_timeout) (low)
3585 camera-app 0.28 (hrtimer_start_range_ns, hrtimer_wakeup) (low)
Total 17.43
Context Switches:
PID Process Voluntary Involuntary Total
Ctxt Sw/Sec Ctxt Sw/Sec Ctxt Sw/Sec
3608 camera-app 1712.07 178.02 1890.09 (high)
3585 camera-app 1498.67 10.72 1509.39 (high)
3606 camera-app 143.25 18.55 161.80 (quite high)
3667 camera-app 142.33 18.68 161.02 (quite high)
3605 camera-app 141.25 18.32 159.57 (quite high)
3628 camera-app 128.12 16.50 144.62 (quite high)
3587 camera-app 108.98 0.05 109.03 (quite high)
3661 camera-app 6.48 46.30 52.78 (moderate)
3607 camera-app 27.75 1.65 29.40 (moderate)
3589 camera-app 20.48 0.02 20.50 (moderate)
3592 camera-app 0.00 0.00 0.00 (idle)
3590 camera-app 0.00 0.00 0.00 (idle)
3588 camera-app 0.00 0.00 0.00 (idle)
Total 4238.19 308.80 3929.39
File I/O operations:
PID Process Count Op Filename
3585 camera-app 43 O /home/phablet/.config/user-dirs.dirs
3585 camera-app 41 CW /home/phablet/Pictures/image20130905_0004.jpg
3585 camera-app 22 W /tmp/Camera App.nS3585
3585 camera-app 21 C /home/phablet/.config/user-dirs.dirs
3585 camera-app 21 R /home/phablet/.config/user-dirs.dirs
3585 camera-app 1 OCR /home/phablet/.config/user-dirs.dirs
Total 149
File I/O Operations per second:
PID Process Open Close Read Write
3585 camera-app 0.73 1.05 0.37 1.05
System calls traced:
PID Process Syscall Count Rate/Sec
3608 camera-app ioctl 25035 417.2470
3585 camera-app futex 13713 228.5484
3608 camera-app futex 12382 206.3652
3585 camera-app clock_gettime 9065 151.0823
3585 camera-app poll 6098 101.6326
3585 camera-app read 5929 98.8160
3608 camera-app clock_gettime 2949 49.1497
3608 camera-app mmap2 2389 39.8164
3628 camera-app ioctl 1532 25.5332
3608 camera-app poll 1421 23.6832
3608 camera-app munmap 1022 17.0332
3587 camera-app epoll_wait 927 15.4499
3587 camera-app recvfrom 926 15.4332
3585 camera-app stat64 682 11.3666
3628 camera-app getpriority 409 6.8166
3585 camera-app recvmsg 396 6.6000
3585 camera-app gettimeofday 319 5.3166
3628 camera-app munmap 279 4.6500
3585 camera-app sendmsg 242 4.0333
3589 camera-app futex 231 3.8500
3589 camera-app nanosleep 190 3.1666
3628 camera-app clock_gettime 155 2.5833
3585 camera-app ioctl 96 1.6000
3585 camera-app fstat64 88 1.4667
3628 camera-app futex 84 1.4000
3608 camera-app read 82 1.3667
3608 camera-app open 44 0.7333
3661 camera-app futex 30 0.5000
3585 camera-app munmap 24 0.4000
3661 camera-app poll 23 0.3833
3661 camera-app read 23 0.3833
3661 camera-app clock_gettime 23 0.3833
3585 camera-app fcntl64 22 0.3667
3608 camera-app writev 22 0.3667
3585 camera-app access 22 0.3667
3585 camera-app open 22 0.3667
3661 camera-app mmap2 22 0.3667
3585 camera-app fork 21 0.3500
3587 camera-app mprotect 18 0.3000
3587 camera-app futex 12 0.2000
3628 camera-app dup 10 0.1667
3628 camera-app _llseek 5 0.0833
3628 camera-app fcntl64 5 0.0833
3628 camera-app stat64 5 0.0833
3628 camera-app mmap2 5 0.0833
3628 camera-app fstat64 5 0.0833
3628 camera-app lstat64 5 0.0833
3628 camera-app rename 5 0.0833
3628 camera-app open 5 0.0833
3628 camera-app unlink 5 0.0833
3661 camera-app munmap 1 0.0167
3661 camera-app restart_syscall 1 0.0167
3592 camera-app restart_syscall 1 0.0167
3585 camera-app restart_syscall 1 0.0167
Total 87028 1450.4563
Top polling system calls:
PID Process Syscall Rate/Sec Infinite Zero Minimum Maximum Average
Timeouts Timeouts Timeout Timeout Timeout
3585 camera-app poll 101.6326 2974 1853 0.0 sec 25.0 sec 788.5 msec
3608 camera-app poll 23.6832 0 1421 0.0 sec 0.0 sec 0.0 sec
3587 camera-app epoll_wait 15.4499 0 0 5.0 sec 5.0 sec 5.0 sec
3589 camera-app nanosleep 3.1666 0 0 900.0 usec 900.0 usec 900.0 usec
3661 camera-app poll 0.3833 22 1 0.0 sec 0.0 sec 0.0 sec
Total 144.3156 2996 3275
Distribution of poll timeout times:
10.0 100.0 1.0 10.0 100.0 1.0 10.0 100.0
up to to to to to to to to or more
Zero 9.9 99.9 999.9 9.9 99.9 999.9 9.9 99.9 Infinite
PID Process Syscall sec usec usec usec msec msec msec sec sec sec Wait
3585 camera-app poll 1853 -- -- -- 29 178 864 24 176 -- 2974
3608 camera-app poll 1421 -- -- -- -- -- -- -- -- -- 0
3587 camera-app epoll_wait 0 -- -- -- -- -- -- 927 -- -- 0
3589 camera-app nanosleep 0 -- -- 190 -- -- -- -- -- -- 0
3661 camera-app poll 1 -- -- -- -- -- -- -- -- -- 22
Polling system call analysis:
camera-app (3585), poll:
2 immediate timed out calls with zero timeout (non-blocking peeks)
camera-app (3608), poll:
1339 immediate timed out calls with zero timeout (non-blocking peeks)
1297 repeated immediate timed out polled calls with zero timeouts (heavy polling peeks)
Per Process Memory (K):
PID Process Type Size RSS PSS
3585 camera-app Stack 136 64 64
3585 camera-app Heap 130440 11476 11476
3585 camera-app Mapped 131308 44688 24811
Change in memory (K/second):
PID Process Type Size RSS PSS
3585 camera-app Heap 0.00 1.80 1.80 (growing)
3585 camera-app Mapped 0.00 0.40 0.37 (growing slowly)
Open Network Connections:
None.
