CD9660/md(4)/UFS22 silly behaviour

2012-01-08 Thread Poul-Henning Kamp
I'm doing som data-mining on a pile of ISO images right now. I stuck the ISOs on a UFS2 on a flash-disk for speed, and mdconfig(8)'d them so I could mount them. The traffic pattern his interesting: dT: 1.003s w: 1.000s L(q) ops/sr/s kBps ms/rw/s kBps ms/w %busy Name [...]

Re: CD9660/md(4)/UFS22 silly behaviour

2012-01-08 Thread Kostik Belousov
On Sun, Jan 08, 2012 at 10:21:50PM +, Poul-Henning Kamp wrote: I'm doing som data-mining on a pile of ISO images right now. I stuck the ISOs on a UFS2 on a flash-disk for speed, and mdconfig(8)'d them so I could mount them. The traffic pattern his interesting: dT: 1.003s w:

Re: CD9660/md(4)/UFS22 silly behaviour

2012-01-08 Thread Poul-Henning Kamp
In message 20120108222720.gn31...@deviant.kiev.zoral.com.ua, Kostik Belousov writes: What is the access patern ? Is it random access, or sequential read (from the cd9660 POV) ? Random access to files in the CD9660 filesystem, which stores files in sequential 2K blocks. -- Poul-Henning Kamp

Re: CD9660/md(4)/UFS22 silly behaviour

2012-01-08 Thread Kostik Belousov
On Sun, Jan 08, 2012 at 10:31:06PM +, Poul-Henning Kamp wrote: In message 20120108222720.gn31...@deviant.kiev.zoral.com.ua, Kostik Belousov writes: What is the access patern ? Is it random access, or sequential read (from the cd9660 POV) ? Random access to files in the CD9660

Re: CD9660/md(4)/UFS22 silly behaviour

2012-01-08 Thread Freddie Cash
On Sun, Jan 8, 2012 at 2:33 PM, Kostik Belousov kostik...@gmail.com wrote: On Sun, Jan 08, 2012 at 10:31:06PM +, Poul-Henning Kamp wrote: In message 20120108222720.gn31...@deviant.kiev.zoral.com.ua, Kostik Belousov writes: What is the access patern ? Is it random access, or sequential

Re: CD9660/md(4)/UFS22 silly behaviour

2012-01-08 Thread Garrett Cooper
On Sun, Jan 8, 2012 at 3:01 PM, Freddie Cash fjwc...@gmail.com wrote: On Sun, Jan 8, 2012 at 2:33 PM, Kostik Belousov kostik...@gmail.com wrote: On Sun, Jan 08, 2012 at 10:31:06PM +, Poul-Henning Kamp wrote: In message 20120108222720.gn31...@deviant.kiev.zoral.com.ua, Kostik Belousov

Re: CD9660/md(4)/UFS22 silly behaviour

2012-01-08 Thread Don Lewis
On 8 Jan, Poul-Henning Kamp wrote: I'm doing som data-mining on a pile of ISO images right now. I stuck the ISOs on a UFS2 on a flash-disk for speed, and mdconfig(8)'d them so I could mount them. The traffic pattern his interesting: dT: 1.003s w: 1.000s L(q) ops/sr/s kBps

Re: CD9660/md(4)/UFS22 silly behaviour

2012-01-08 Thread Kostik Belousov
On Sun, Jan 08, 2012 at 04:09:00PM -0800, Don Lewis wrote: On 8 Jan, Poul-Henning Kamp wrote: I'm doing som data-mining on a pile of ISO images right now. I stuck the ISOs on a UFS2 on a flash-disk for speed, and mdconfig(8)'d them so I could mount them. The traffic pattern his