why CDROM operations cause system to be slow and HD operations do not

2005-07-13 Thread Yuri
When I read something from CDROM my system gets visibly slow and HD reads/writes do not have the same effect. I think they both should have similar effect on system performance since multiple requests should just wait till completion interrupt and other processes shouldn't be affected.

Re: why CDROM operations cause system to be slow and HD operations do not

2005-07-13 Thread Ivailo Tanusheff
- this could solve your problem :) Ivailo Tanusheff Yuri [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 07/13/2005 10:54 AM To freebsd-questions@freebsd.org cc Subject why CDROM operations cause system to be slow and HD operations do not When I read something from CDROM my system gets

Re: why CDROM operations cause system to be slow and HD operations do not

2005-07-13 Thread Nelis Lamprecht
On 7/13/05, Yuri [EMAIL PROTECTED] wrote: When I read something from CDROM my system gets visibly slow and HD reads/writes do not have the same effect. I think they both should have similar effect on system performance since multiple requests should just wait till completion interrupt and

Re: why CDROM operations cause system to be slow and HD operations do not

2005-07-13 Thread Dmitry Mityugov
On 7/13/05, Yuri [EMAIL PROTECTED] wrote: When I read something from CDROM my system gets visibly slow and HD reads/writes do not have the same effect. I think they both should have similar effect on system performance since multiple requests should just wait till completion interrupt and

Re: why CDROM operations cause system to be slow and HD operations do not

2005-07-13 Thread Gustavo De Nardin
On 13/07/05, Yuri [EMAIL PROTECTED] wrote: When I read something from CDROM my system gets visibly slow and HD reads/writes do not have the same effect. By default: hw.ata.ata_dma: 1--- affects HD hw.ata.atapi_dma: 0 --- affects CD So: # atacontrol mode 0 Master = UDMA100 --- HD