You give each thread a name with this (non-portable) pthread api: This name is visible in thread-level 'ps' output (so 'ps -L PID'). I recommend to give every thread a human-readable name. The thread ID returned by this call is not the same thing as a POSIX thread ID (i.e., the opaque value returned by pthread_self(3)). Glibc does not provide a wrapper for this system call call it using syscall(2).

Note: There is no glibc wrapper for this system call see NOTES. Snprintf(fname, sizeof(fname), '/proc/self/task/%d/stat', (int) get_task_id()) As noted in the man page (see quotes), there is no direct API to gettid, instead the syscall is neededįor code that can be used inside an app, see below

Still, if you’ve reached this point with no solution in sight, you won’t lose anything trying a different one.That leave with the task of mapping threads to TASKID. It’s rare for the Linux kernel to be the reason for high CPU utilization. Still, those don’t share the exact feature set and may lack some functionality. Alternatively, you can try open-source versions of your GPU’s drivers. The solution is upgrading or downgrading to a different version. Xorg doesn’t really get along with specific versions of Nvidia’s or AMD’s drivers.

Sometimes the GPU’s drivers can cause high CPU usage, too. Sometimes, by enabling compositing support, you’re also enabling many demanding effects. Although officially the compositor offloads CPU-related tasks to the GPU, that’s not always the case. Save the file, reboot, and hopefully, everything will work okay now.įor Xorg, try disabling your Window Manager’s compositor.

Check cpu utilization in linux