2
votes
1answer
379 views

Apache is not using SWAP and it's reporting page allocation failure

Check the logs: httpd: page allocation failure. order:4, mode:0xd0 Call Trace: [<ffffffff8000f696>] __alloc_pages+0x2ef/0x308 [<ffffffff80017a40>] cache_grow+0x139/0x3c7 ...
16
votes
4answers
16k views

How do I tell if my Windows server is swapping?

I'm using Process Explorer to monitor my windows server while it reconstructs some data. It's primarily a CPU intensive process, but I want to make sure it's not swapping. How can I tell if it is ...
3
votes
4answers
2k views

Windows swap file: why do I have a 3GB swap file when I have 8GB RAM?

Here is my system info: I built a DIY system with the expectation that there wouldn't be any need for a swap file, yet there it is, 3340MB. Can anyone explain this? Is it really anything I ...
4
votes
8answers
2k views

Swap file fragmentation: fact or fiction?

This is about Windows, but I'm sure it applies to other OS as well. I've heard people say that if you want better performance, you should avoid swap file fragmentation. To do this, you can either ...
20
votes
5answers
13k views

swap partition vs file for performance?

What is better for performance? A partition closer to the inside of the disk will have slower access times, and we must wait for the drive to switch between the OS and swap partitions. On the other ...