Thanks for helping! Per your post, I've researched the 'prefork MPM' section of my httpd.conf file but am not finding anything that helps me fine tune the settings for my particular server usage or server type.
I believe I saw some example .conf files that were like htppd-huge.conf htppd-large.conf htppd-small.conf and stuff like that. I went through each saw that the huge one was referring to a server with 4GB ram which is what mine has. I tried using those settings but my server didn't like it very much at all! Next I tried using the large and medium ones but again my server acted funny so I reverted back to what I have:
Code:
# prefork MPM
# StartServers: number of server processes to start
# MinSpareServers: minimum number of server processes which are kept spare
# MaxSpareServers: maximum number of server processes which are kept spare
# ServerLimit: maximum value for MaxClients for the lifetime of the server
# MaxClients: maximum number of server processes allowed to start
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule prefork.c>
StartServers 16
MinSpareServers 16
MaxSpareServers 64
ServerLimit 512
MaxClients 512
MaxRequestsPerChild 4000
</IfModule>
# worker MPM
# StartServers: initial number of server processes to start
# MaxClients: maximum number of simultaneous client connections
# MinSpareThreads: minimum number of worker threads which are kept spare
# MaxSpareThreads: maximum number of worker threads which are kept spare
# ThreadsPerChild: constant number of worker threads in each server process
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule worker.c>
StartServers 2
MaxClients 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
</IfModule>
There must be a way to limit the CPU usage of each httpd thread so that it doesn't reach 100% ? I read doc's on the Apache site that explained what each of the above does but it didn't help me figure out which way to go with things. Do I leave the worker.c alone above and focus on the prefork? You said to modify the FF but I don't know what FF stands for sorry. You pasted MaxClients, etc. so I'm assuming it's the prefork I should mess with.
Another thing that I tried was since the huge .conf file example had settings almost double mine, I attempted to double the settings such as changing StartServers to 32 from 16, all the way down the module list. That didn't work either.
We have more than 2GB of RAM that's not being used since Plesk usually says we're using between 1GB and 2GB, so I don't imagine this is memory related. Also since most threads in TOP show 0.3% cpu usage to 1.7%cpu usage, it seems to be a problem when I find 100% usage. For instance I got home an hour ago and killed 5 threads that were 100% cpu usage in TOP. I just checked now and see 2 more running and bogging down my server. There's a big difference between 0.6% and 100% I'd say Any further help for my confusion would be GREATLY appreciated!
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LEARN ABOUT REDHAT
xmdropsiteconfigurestackingorder
XmDropSiteConfigureStackingOrder(library call) XmDropSiteConfigureStackingOrder(library call)
NAME
XmDropSiteConfigureStackingOrder -- A Drag and Drop function that reorders a stack of widgets that are registered drop sites
SYNOPSIS
#include <Xm/DragDrop.h>
void XmDropSiteConfigureStackingOrder(
Widget widget,
Widget sibling,
Cardinal stack_mode);
DESCRIPTION
XmDropSiteConfigureStackingOrder changes the stacking order of the drop site specified by widget. The stacking order controls the manner in
which drag-under effects are clipped by overlapping siblings, regardless of whether they are active. The stack mode is relative either to
the entire stack, or to another drop site within the stack. The stack order can be modified only if the drop sites are siblings in both the
widget and drop site hierarchy, and the widget parent of the drop sites is registered as a composite drop site.
widget Specifies the drop site to be restacked.
sibling Specifies a sibling drop site for stacking operations. If specified, then widget is restacked relative to this drop site's stack
position.
stack_mode
Specifies the new stack position for the specified widget. The values are XmABOVE and XmBELOW. If a sibling is specified, then
widget is restacked as follows:
XmABOVE The widget is placed just above the sibling.
XmBELOW The widget is placed just below the sibling.
If the sibling parameter is not specified, then widget is restacked as follows:
XmABOVE The widget is placed at the top of the stack.
XmBELOW The widget is placed at the bottom of the stack.
For a complete definition of DropSite and its associated resources, see XmDropSite(3).
RELATED XmDropSite(3), XmDropSiteRetrieve(3), and XmDropSiteQueryStackingOrder(3).
XmDropSiteConfigureStackingOrder(library call)
12-05-2008
You pasted MaxClients, etc. so I'm assuming it's the prefork I should mess with.