A bunch of page faults

Message boards : Number crunching : A bunch of page faults

To post messages, you must log in.

AuthorMessage
NewtonianRefractor

Send message
Joined: 29 Sep 08
Posts: 19
Credit: 2,350,860
RAC: 0
Message 58107 - Posted: 22 Dec 2008, 10:20:41 UTC

I was wondering why there were so many Page Faults in minirosetta 1.47 process? Is that a bad thing?
ID: 58107 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
NewtonianRefractor

Send message
Joined: 29 Sep 08
Posts: 19
Credit: 2,350,860
RAC: 0
Message 58127 - Posted: 23 Dec 2008, 4:11:43 UTC - in response to Message 58107.  

I was wondering why there were so many Page Faults in minirosetta 1.47 process? Is that a bad thing?


To clarify, the task has been running for total of 14 cpu hours and has accumulated 59,000,000 page faults.

At the same time a climate prediction work unit with a 13 cpu hour time has accumulated only 18,400. Why is the re such a huge difference?
ID: 58127 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote
mikey
Avatar

Send message
Joined: 5 Jan 06
Posts: 1896
Credit: 10,138,586
RAC: 20,966
Message 58136 - Posted: 23 Dec 2008, 11:28:44 UTC - in response to Message 58127.  

I was wondering why there were so many Page Faults in minirosetta 1.47 process? Is that a bad thing?


To clarify, the task has been running for total of 14 cpu hours and has accumulated 59,000,000 page faults.

At the same time a climate prediction work unit with a 13 cpu hour time has accumulated only 18,400. Why is the re such a huge difference?


http://en.wikipedia.org/wiki/Page_fault

It means faster memory or more memory might help, although when checking your pc's you seem to have plenty in each of them. It could also be your cpu causing the problems. What else is running when this is happening? If you are running several things at once, the system will never find what it is looking for in memory and have a "page fault".
ID: 58136 · Rating: 0 · rate: Rate + / Rate - Report as offensive    Reply Quote

Message boards : Number crunching : A bunch of page faults



©2025 University of Washington
https://www.bakerlab.org