Re: 2.2.x series and mm

2001-06-28 Thread Oliver Teuber
hi > > a) Add more RAM - that is the real optimal approach > > b) Make the processes smaller (eg switch to thttpd from www.acme.com) > > c) Speed up the I/O throughput relative to CPU speed > > - eg the 2.2 IDE UDMA patches > d)Reduce the number of Apache processes so they fit nicely

Re: 2.2.x series and mm

2001-06-28 Thread Sean Hunter
On Wed, Jun 27, 2001 at 05:27:11PM +0100, Alan Cox wrote: > > I'm fairly sure it is the file buffers as the apache is already > > reniced to 20, it is got max 50 processes and each of processes is > > limited to like 1.5mb of size via ulimit. > > nice wont help you, it controls

Re: 2.2.x series and mm

2001-06-28 Thread Oliver Teuber
hi a) Add more RAM - that is the real optimal approach b) Make the processes smaller (eg switch to thttpd from www.acme.com) c) Speed up the I/O throughput relative to CPU speed - eg the 2.2 IDE UDMA patches d)Reduce the number of Apache processes so they fit nicely in RAM e)

Re: 2.2.x series and mm

2001-06-28 Thread Sean Hunter
On Wed, Jun 27, 2001 at 05:27:11PM +0100, Alan Cox wrote: I'm fairly sure it is the file buffers as the apache is already reniced to 20, it is got max 50 processes and each of processes is limited to like 1.5mb of size via ulimit. nice wont help you, it controls scheduling

Re: 2.2.x series and mm

2001-06-27 Thread Alan Cox
> > b) Make the processes smaller (eg switch to thttpd from www.acme.com) > > c) Speed up the I/O throughput relative to CPU speed > > - eg the 2.2 IDE UDMA patches > > can you elaborate on the "c" point" perhaps I could try it together with > 2.2.20pre6 until I can do a). > > about b)

Re: 2.2.x series and mm

2001-06-27 Thread Adam
> 2.2.19+ do make slightly better decisions on the VM front, but at the end of > the day swapping only works usefully when the working set still fits in > RAM (ie all the stuff you keep needing). > a)Add more RAM - that is the real optimal approach > b)Make the processes smaller (eg

Re: 2.2.x series and mm

2001-06-27 Thread Alan Cox
> I'm fairly sure it is the file buffers as the apache is already > reniced to 20, it is got max 50 processes and each of processes is > limited to like 1.5mb of size via ulimit. nice wont help you, it controls scheduling priority. Similar a ulimit just ensures that no apache

Re: 2.2.x series and mm

2001-06-27 Thread Andrea Arcangeli
On Wed, Jun 27, 2001 at 10:08:15AM -0500, Adam wrote: > > hello, > I have question. I have box with kernel 2.2.17pre15 upgrade to 2.2.19 or 2.2.20pre Andrea - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More

2.2.x series and mm

2001-06-27 Thread Adam
hello, I have question. I have box with kernel 2.2.17pre15 and 128mb memory. now on this box I have apache server which is serving 205 mb of data. AFAICT this casues all current processes swapped out every so often in favor of putting all data to

Re: 2.2.x series and mm

2001-06-27 Thread Andrea Arcangeli
On Wed, Jun 27, 2001 at 10:08:15AM -0500, Adam wrote: hello, I have question. I have box with kernel 2.2.17pre15 upgrade to 2.2.19 or 2.2.20pre Andrea - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo

Re: 2.2.x series and mm

2001-06-27 Thread Alan Cox
I'm fairly sure it is the file buffers as the apache is already reniced to 20, it is got max 50 processes and each of processes is limited to like 1.5mb of size via ulimit. nice wont help you, it controls scheduling priority. Similar a ulimit just ensures that no apache

Re: 2.2.x series and mm

2001-06-27 Thread Adam
2.2.19+ do make slightly better decisions on the VM front, but at the end of the day swapping only works usefully when the working set still fits in RAM (ie all the stuff you keep needing). a)Add more RAM - that is the real optimal approach b)Make the processes smaller (eg switch to

Re: 2.2.x series and mm

2001-06-27 Thread Alan Cox
b) Make the processes smaller (eg switch to thttpd from www.acme.com) c) Speed up the I/O throughput relative to CPU speed - eg the 2.2 IDE UDMA patches can you elaborate on the c point perhaps I could try it together with 2.2.20pre6 until I can do a). about b) would it really