Are there true ulimit for windows?
I'm finding ways/programs how to prevent one program eating 100% cpu.
Thanks.
Windows – ulimit for windows
process-accountingulimitwindows
Related Solutions
These limits came from a time where multiple "normal" users (not apps) would share the server, and we needed ways to protect them from using too many resources.
They are very low for high performance servers and we generally set them to a very high number. (24k or so) If you need higher numbers, you also need to change the sysctl file-max option (generally limited to 40k on ubuntu and 70k on rhel) .
Setting ulimit:
# ulimit -n 99999
Sysctl max files:
#sysctl -w fs.file-max=100000
Also, and very important, you may need to check if your application has a memory/file descriptor leak. Use lsof to see all it has open to see if they are valid or not. Don't try to change your system to work around applications bugs.
Best Answer
windows system resource manager is the tool to set cpu limits per process, and adds process accounting interfaces. In older versions of windows this was what was on the second disk that no-one ever installed. In 2008 its a feature to be enabled. Its generally not as important on a windows system (from a resource control perspective) than a unix one as "nice" is built into the OS and process priority (with certain exceptions) can be changed on the fly in the gui, in addition under windows vist and above disk IO can also be prioritized (by default this is based off of the priority of the process). There is an API that lets you set disk IO priority explicitly but I am unaware of any utility to let you directly change just disk IO priority