Re: [PATCH] fs: Add romfs version 2

2007-08-06 Thread Sergey Vlasov
On Fri, 13 Jul 2007 16:01:48 +1000 Lindsay Roberts wrote: > * Increases romfs partition size limit from 2GB to 4GB. This should be a separate patch. > * Adds new derivative of romfs filesystem (rom2fs) with > block aligned regular file data to bring performance > parity with ext2/3. This is

Re: [PATCH] fs: Add romfs version 2

2007-08-06 Thread Matt Mackall
On Mon, Aug 06, 2007 at 05:43:54PM +1000, Lindsay Roberts wrote: > On 7/26/07, Pavel Machek <[EMAIL PROTECTED]> wrote: > > If the fs is read-only.. can we do some tail packing and get _both_ > > speed and space efficiency? > > You mean don't block align files of size less than 1k, and >

Re: [PATCH] fs: Add romfs version 2

2007-08-06 Thread Lindsay Roberts
On 7/26/07, Pavel Machek <[EMAIL PROTECTED]> wrote: > If the fs is read-only.. can we do some tail packing and get _both_ > speed and space efficiency? You mean don't block align files of size less than 1k, and intelligently pack them into the gaps left by files that are aligned? Does seem that

Re: [PATCH] fs: Add romfs version 2

2007-08-06 Thread Lindsay Roberts
On 7/26/07, Pavel Machek [EMAIL PROTECTED] wrote: If the fs is read-only.. can we do some tail packing and get _both_ speed and space efficiency? You mean don't block align files of size less than 1k, and intelligently pack them into the gaps left by files that are aligned? Does seem that most

Re: [PATCH] fs: Add romfs version 2

2007-08-06 Thread Matt Mackall
On Mon, Aug 06, 2007 at 05:43:54PM +1000, Lindsay Roberts wrote: On 7/26/07, Pavel Machek [EMAIL PROTECTED] wrote: If the fs is read-only.. can we do some tail packing and get _both_ speed and space efficiency? You mean don't block align files of size less than 1k, and intelligently pack

Re: [PATCH] fs: Add romfs version 2

2007-08-06 Thread Sergey Vlasov
On Fri, 13 Jul 2007 16:01:48 +1000 Lindsay Roberts wrote: * Increases romfs partition size limit from 2GB to 4GB. This should be a separate patch. * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is

Re: [PATCH] fs: Add romfs version 2

2007-07-30 Thread Rene Herman
On 07/30/2007 08:12 PM, Phillip Susi wrote: Lindsay Roberts wrote: * Increases romfs partition size limit from 2GB to 4GB. * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the read speed of

Re: [PATCH] fs: Add romfs version 2

2007-07-30 Thread Phillip Susi
Lindsay Roberts wrote: * Increases romfs partition size limit from 2GB to 4GB. * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the read speed of the existing romfs. Why does block

Re: [PATCH] fs: Add romfs version 2

2007-07-30 Thread Phillip Susi
Lindsay Roberts wrote: * Increases romfs partition size limit from 2GB to 4GB. * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the read speed of the existing romfs. Why does block

Re: [PATCH] fs: Add romfs version 2

2007-07-30 Thread Rene Herman
On 07/30/2007 08:12 PM, Phillip Susi wrote: Lindsay Roberts wrote: * Increases romfs partition size limit from 2GB to 4GB. * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the read speed of

Re: [PATCH] fs: Add romfs version 2

2007-07-25 Thread Pavel Machek
Hi! > >> > block aligned regular file data to bring > >performance > >> > parity with ext2/3. This is about 225% of the read > >> > speed of the existing romfs. > > > >Doesn't that make these filesystems much bigger? By, on > >average, .5k > >per file? Or, if I'm understanding things

Re: [Celinux-dev] Re: [PATCH] fs: Add romfs version 2

2007-07-25 Thread Greg Ungerer
Tim Bird wrote: Lindsay Roberts wrote: Yes, my experience has been that it has been almost chillingly close to .5k per regular file increase in partition size. I know in applications in which size is utterly critical this may be slightly unattractive, but in cases where romfs is chosen for its

Re: [Celinux-dev] Re: [PATCH] fs: Add romfs version 2

2007-07-25 Thread Greg Ungerer
Tim Bird wrote: Lindsay Roberts wrote: Yes, my experience has been that it has been almost chillingly close to .5k per regular file increase in partition size. I know in applications in which size is utterly critical this may be slightly unattractive, but in cases where romfs is chosen for its

Re: [PATCH] fs: Add romfs version 2

2007-07-25 Thread Pavel Machek
Hi! block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the read speed of the existing romfs. Doesn't that make these filesystems much bigger? By, on average, .5k per file? Or, if I'm understanding things correctly, ~1k? Yes,

Re: [PATCH] fs: Add romfs version 2

2007-07-18 Thread Tim Bird
Lindsay Roberts wrote: > Yes, my experience has been that it has been almost chillingly close > to .5k per regular file increase in partition size. I know in > applications in which size is utterly critical this may be slightly > unattractive, but in cases where romfs is chosen for its byte >

Re: [PATCH] fs: Add romfs version 2

2007-07-18 Thread Tim Bird
Lindsay Roberts wrote: Yes, my experience has been that it has been almost chillingly close to .5k per regular file increase in partition size. I know in applications in which size is utterly critical this may be slightly unattractive, but in cases where romfs is chosen for its byte

Re: [PATCH] fs: Add romfs version 2

2007-07-17 Thread Lindsay Roberts
On 7/18/07, Matt Mackall <[EMAIL PROTECTED]> wrote: > > * Adds new derivative of romfs filesystem (rom2fs) with > > block aligned regular file data to bring performance > > parity with ext2/3. This is about 225% of the read > > speed of the existing romfs. Doesn't that make these

Re: [PATCH] fs: Add romfs version 2

2007-07-17 Thread Matt Mackall
On Tue, Jul 17, 2007 at 01:36:35AM -0700, Andrew Morton wrote: > On Fri, 13 Jul 2007 16:01:48 +1000 "Lindsay Roberts" <[EMAIL PROTECTED]> > wrote: > > > * Increases romfs partition size limit from 2GB to 4GB. That seems worthwhile. > > * Adds new derivative of romfs filesystem (rom2fs) with >

Re: [PATCH] fs: Add romfs version 2

2007-07-17 Thread Andrew Morton
On Fri, 13 Jul 2007 16:01:48 +1000 "Lindsay Roberts" <[EMAIL PROTECTED]> wrote: > * Increases romfs partition size limit from 2GB to 4GB. > * Adds new derivative of romfs filesystem (rom2fs) with > block aligned regular file data to bring performance > parity with ext2/3. This is about 225%

Re: [PATCH] fs: Add romfs version 2

2007-07-17 Thread Andrew Morton
On Fri, 13 Jul 2007 16:01:48 +1000 Lindsay Roberts [EMAIL PROTECTED] wrote: * Increases romfs partition size limit from 2GB to 4GB. * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the

Re: [PATCH] fs: Add romfs version 2

2007-07-17 Thread Matt Mackall
On Tue, Jul 17, 2007 at 01:36:35AM -0700, Andrew Morton wrote: On Fri, 13 Jul 2007 16:01:48 +1000 Lindsay Roberts [EMAIL PROTECTED] wrote: * Increases romfs partition size limit from 2GB to 4GB. That seems worthwhile. * Adds new derivative of romfs filesystem (rom2fs) with block

Re: [PATCH] fs: Add romfs version 2

2007-07-17 Thread Lindsay Roberts
On 7/18/07, Matt Mackall [EMAIL PROTECTED] wrote: * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the read speed of the existing romfs. Doesn't that make these filesystems much

[PATCH] fs: Add romfs version 2

2007-07-13 Thread Lindsay Roberts
* Increases romfs partition size limit from 2GB to 4GB. * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the read speed of the existing romfs. Signed-off-by: Lindsay Roberts <[EMAIL

[PATCH] fs: Add romfs version 2

2007-07-13 Thread Lindsay Roberts
* Increases romfs partition size limit from 2GB to 4GB. * Adds new derivative of romfs filesystem (rom2fs) with block aligned regular file data to bring performance parity with ext2/3. This is about 225% of the read speed of the existing romfs. Signed-off-by: Lindsay Roberts [EMAIL PROTECTED]