Re: Sluggish scheduling during a long disk copy

2008-11-10 Thread Szabolcs Szakacsits
Kris Kennaway FreeBSD.org> writes: > Sounds like it to me. ntfs-3g uses FUSE, which is a userland filesystem > framework. By design it will have poor I/O performance since every I/O > transfer will require multiple trips into and out of the kernel. Performance doesn't work like that for file

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread Dan
Bruce Cran([EMAIL PROTECTED])@2008.11.09 14:40:04 -0800: > It may be that FUSE is aggressively caching data and pushing your > applications out of memory. This commonly happens on Linux and may > be happening here too. > Fuse is good. Tried without fuse, using the native ntfs mount. Still the sa

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread Bruce Cran
On Sun, 09 Nov 2008 14:12:34 -0800 Kris Kennaway <[EMAIL PROTECTED]> wrote: > Dan wrote: > > Kris Kennaway([EMAIL PROTECTED])@2008.11.09 12:57:16 -0800: > >>> could be an issue with ntfs-3g driver > >> Sounds like it to me. ntfs-3g uses FUSE, which is a userland > >> filesystem framework. By des

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread Kris Kennaway
Dan wrote: Kris Kennaway([EMAIL PROTECTED])@2008.11.09 12:57:16 -0800: could be an issue with ntfs-3g driver Sounds like it to me. ntfs-3g uses FUSE, which is a userland filesystem framework. By design it will have poor I/O performance since every I/O transfer will require multiple trips i

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread Dan
Kris Kennaway([EMAIL PROTECTED])@2008.11.09 12:57:16 -0800: >> could be an issue with ntfs-3g driver > > Sounds like it to me. ntfs-3g uses FUSE, which is a userland filesystem > framework. By design it will have poor I/O performance since every I/O > transfer will require multiple trips into

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread Dan
Odhiambo Washington([EMAIL PROTECTED])@2008.11.09 23:25:19 +0300: > On Sun, Nov 9, 2008 at 11:21 PM, Dan <[EMAIL PROTECTED]>wrote: > > > Hello. I am copying one 150G disk to a 3ware mirror, and the machine > > becomes downright unusable. It takes seconds to switch between 'konsole' > > windows and

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread Kris Kennaway
matt donovan wrote: On Sun, Nov 9, 2008 at 3:32 PM, Dan <[EMAIL PROTECTED]>wrote: Odhiambo Washington([EMAIL PROTECTED])@2008.11.09 23:25:19 +0300: On Sun, Nov 9, 2008 at 11:21 PM, Dan < [EMAIL PROTECTED]>wrote: Hello. I am copying one 150G disk to a 3ware mirror, and the machine becomes dow

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread matt donovan
On Sun, Nov 9, 2008 at 3:32 PM, Dan <[EMAIL PROTECTED]>wrote: > Odhiambo Washington([EMAIL PROTECTED])@2008.11.09 23:25:19 +0300: > > On Sun, Nov 9, 2008 at 11:21 PM, Dan < > [EMAIL PROTECTED]>wrote: > > > > > Hello. I am copying one 150G disk to a 3ware mirror, and the machine > > > becomes downr

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread Dan
Odhiambo Washington([EMAIL PROTECTED])@2008.11.09 23:25:19 +0300: > On Sun, Nov 9, 2008 at 11:21 PM, Dan <[EMAIL PROTECTED]>wrote: > > > Hello. I am copying one 150G disk to a 3ware mirror, and the machine > > becomes downright unusable. It takes seconds to switch between 'konsole' > > windows and

Re: Sluggish scheduling during a long disk copy

2008-11-09 Thread Odhiambo Washington
On Sun, Nov 9, 2008 at 11:21 PM, Dan <[EMAIL PROTECTED]>wrote: > Hello. I am copying one 150G disk to a 3ware mirror, and the machine > becomes downright unusable. It takes seconds to switch between 'konsole' > windows and it takes seconds between I type a command (ssh session to > a remote box, w