hoodsraka.blogg.se - Utime crash

UTIME CRASH INSTALL

We have invested this problem, but we couldn’t even reproduce this problem.ġst thread1.txt = In the kernel, the value is summed in uptime_proc_show from variables updated in account_idle_time.We are running Asterisk 16.11.0 + Pjproject 2.10 in Ubuntu 16.04.5 LTS (Xenial Xerus) and got Segmentation fault error three times below on the same day. I'm not sure what that really means it's certainly not the total idle time on my machine. The second field is the cumulated time spent in the idle task on all CPUs.

The first field is the real time elapsed since the system booted, minus any time spent suspended or hibernating.

On the system side, your description of /proc/uptime seems wrong. I don't know what the parent PID has to do with this. Which one to count depends on what you want to do with the information.Ĭounting all the PIDs is right. In /proc/$pid/stat, the user time is the time spent doing computation, as opposed to the system time spent doing I/O. Process accounting does list all past processes. You'll miss almost all short-lived processes and the last few seconds of long processes. Note that you aren't going to catch all processes by sampling at intervals, not by a far cry. The statistics accumulated by sa run from the last rotation of the accounting logs (typically located in /var/log/account/). In particular, sa -m displays per-user totals. Run sa to display various sums and statistics. Run lastcomm to get a list of all the commands executed by any user and the time spent in each (rounded to ~10ms for short-lived processes, expect to see a lot of 0.00). I'm not sure how accurate it will be at keeping track of the time spent in very short-lived processes, but it'll at least list all the processes ever executed.

UTIME CRASH INSTALL

On Linux, install the GNU accounting utilities, typically provided by a package called acct. The traditional way to log and track user CPU time is process accounting.

What's the fairest way to monitor total CPU time - per user? (+500 Bounty) on Ask Ubuntu.

If I am completely on the wrong track, there's another question: And it reports values that, while I don't understand them, correlate very well with measurements from time. At the moment I'm using the sum of utime, stime, cutime and cstime. I get "sensible looking" values for all kinds of things. For instance (in minutes): system cpu_time: 96.13 If I calculate the system's total cpu time using /proc/uptime, this value is fairly close to my sum for all users, but the difference is significant. Do I need to worry about those? I'm assuming that utime is the total number of cpu seconds for a PID, not counting the parent.

There are, in addition to utime, stime, cutime and cstime.

But I'm counting every PID, not just the ones with a ppid of 0.

Each PID also has a parent PID (or zero).

Some of the things I don't understand or take into account yet: I'm hoping this will give me an accurate value for the number of CPU seconds this user has spent. So, my "user utime" is the sum of the utime of all PIDs this user is running. Not lose that time from their calculations.

(time spent running a virtual CPU, see below), so thatĪpplications that are not aware of the guest time field do In order to measure a user's total CPU time, I'm using the "utime" field out of /proc//stat: utime %lu Amount of time that this process has been scheduled in user