11-27-2015
Quote:
Originally Posted by
coolatt
hello all,
on linux servers sometimes any of these resources (cpu,memory,disk) get a spike when you are not in front of the server.
the duration of these spikes might be 5 mins or even whole weekend.
my question is there a good way of capturing the events that caused these issues ( cpu or memory) that can later be used to investigate and find a solution.
p.s am not talking about monitoring tools like caccti,nagios etc.
thanks
If this is only a problem when you are not in front of the server, you can either always stand in front of the server or you can tell us what you do while standing in front of the server that keeps the spikes from happening or being a problem. Then maybe we can help you write a script that would do what you do while standing in front of the server that keeps it from being a problem (even when you're not standing there).
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LEARN ABOUT REDHAT
glxswapbuffers
GLXSWAPBUFFERS() GLXSWAPBUFFERS()
NAME
glXSwapBuffers - exchange front and back buffers
C SPECIFICATION
void glXSwapBuffers( Display *dpy,
GLXDrawable drawable )
delim $$
PARAMETERS
dpy Specifies the connection to the X server.
drawable Specifies the drawable whose buffers are to be swapped.
DESCRIPTION
glXSwapBuffers promotes the contents of the back buffer of drawable to become the contents of the front buffer of drawable. The contents
of the back buffer then become undefined. The update typically takes place during the vertical retrace of the monitor, rather than immedi-
ately after glXSwapBuffers is called.
glXSwapBuffers performs an implicit glFlush before it returns. Subsequent OpenGL commands may be issued immediately after calling glXSwap-
Buffers, but are not executed until the buffer exchange is completed.
If drawable was not created with respect to a double-buffered visual, glXSwapBuffers has no effect, and no error is generated.
NOTES
The contents of the back buffer become undefined after a swap. Note that this applies to pbuffers as well as windows.
All GLX rendering contexts share the same notion of which are front buffers and which are back buffers. One consequence is that when mul-
tiple clients are rendering to the same double-buffered window, all of them should finish rendering before one of them issues the command
to swap buffers. The clients are responsible for implementing this synchronization. Typically this is accomplished by executing glFinish
and then using a semaphore in shared memory to rendezvous before swapping.
ERRORS
GLXBadDrawable is generated if drawable is not a valid GLX drawable.
GLXBadCurrentWindow is generated if dpy and drawable are respectively the display and drawable associated with the current context of the
calling thread, and drawable identifies a window that is no longer valid.
SEE ALSO
glFlush, glXBindSwapBarrierSGIX, glXJoinSwapGroupSGIX, glXSwapIntervalSGI
GLXSWAPBUFFERS()