I am attempting to debug random slowness in an application and before I
google the web too much, I thought I'd ask here:
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
32.37 0.027971 2 14698 epoll_wait
29.50 0.025491 1 22815 write
18.92 0.016346 1 29406 clock_gettime
13.43 0.011601 1 14424 read
4.81 0.004154 18 229 mmap
0.36 0.000311 2 140 munmap
0.21 0.000184 4 52 2 epoll_ctl
0.18 0.000152 1 164 80 open
0.12 0.000106 1 200 futex
0.10 0.000083 1 88 close
0.00 0.000000 0 84 fstat
0.00 0.000000 0 4 socket
0.00 0.000000 0 4 4 connect
0.00 0.000000 0 8 setsockopt
0.00 0.000000 0 4 getsockopt
0.00 0.000000 0 4 uname
0.00 0.000000 0 8 fcntl
0.00 0.000000 0 20 sysinfo
------ ----------- ----------- --------- --------- ----------------
100.00 0.086399 82352 86 total
The connect() errors stem from redis, but from what I gather a EINPROGRESS
is not a bad thing...
*[pid 8039] connect(53, {sa_family=AF_INET, sin_port=htons(6379),
sin_addr=inet_addr("10.24.24.122")}, 16) = -1 EINPROGRESS (Operation now in
progress)
*
These open() errors confuse me:
*[pid 8032] open("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq",
O_RDONLY) = -1 ENOENT (No such file or directory)*
*[pid 8032] open("/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_max_freq",
O_RDONLY) = -1 ENOENT (No such file or directory)*
*[pid 8032] open("/sys/devices/system/cpu/cpu2/cpufreq/cpuinfo_max_freq",
O_RDONLY) = -1 ENOENT (No such file or directory)*
*[pid 8032] open("/sys/devices/system/cpu/cpu3/cpufreq/cpuinfo_max_freq",
O_RDONLY) = -1 ENOENT (No such file or directory)*
I was not able to capture the epoll_ctl errors...
Any thoughts?
--
Job Board: http://jobs.nodejs.org/
Posting guidelines:
https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines
You received this message because you are subscribed to the Google
Groups "nodejs" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/nodejs?hl=en?hl=en
