[sage-devel] Re: How to profile I/O?

2010-11-13 Thread Simon King
Hi Jeroen, On 12 Nov., 16:09, Jeroen Demeyer jdeme...@cage.ugent.be wrote: Forgive me for stating the obvious, but it might be caused by 1) swapping out memory to disk 2) other processes taking up CPU time No, according to top it was the only thing taking CPU time, and the memory consumption

[sage-devel] Re: How to profile I/O?

2010-11-13 Thread Simon King
Hi Dave! On 12 Nov., 16:22, Dr. David Kirkby david.kir...@onetel.net wrote: On 11/12/10 03:10 PM, Dr. David Kirkby wrote: I meant to say Sage is NOT the place to look. vmstat, sar (possibly top) are worth looking at. top would not help. It simply says that my process is sometimes only

Re: [sage-devel] Re: How to profile I/O?

2010-11-13 Thread Jeroen Demeyer
On 2010-11-13 13:29, Simon King wrote: Perhaps there is a system tool for that purpose. I think it would help me if some tool would produce a list of all file names to which I/O happened, and record the I/O time for each file. You might have a look at strace. It is probably not exactly what

Re: [sage-devel] Re: How to profile I/O?

2010-11-13 Thread Dr. David Kirkby
On 11/13/10 12:29 PM, Simon King wrote: Hi Dave! On 12 Nov., 16:22, Dr. David Kirkbydavid.kir...@onetel.net wrote: On 11/12/10 03:10 PM, Dr. David Kirkby wrote: I meant to say Sage is NOT the place to look. vmstat, sar (possibly top) are worth looking at. top would not help. It simply

Re: [sage-devel] Re: How to profile I/O?

2010-11-13 Thread Paulo César Pereira de Andrade
2010/11/13 Simon King simon.k...@uni-jena.de: Hi Dave! On 12 Nov., 16:22, Dr. David Kirkby david.kir...@onetel.net wrote: On 11/12/10 03:10 PM, Dr. David Kirkby wrote: I meant to say Sage is NOT the place to look. vmstat, sar (possibly top) are worth looking at. top would not help. It