reiserfs performance on ssd

2006-04-27 Thread Jure Pečar
Hi all, I have a simple solid state disk to play with here. See http://nerv.eu.org/iram/ Reiserfs is known to have good performance with small files. I am a big fan of it and am using it in production, however the numbers I got here got me thinking. fsstone is basically a

Re: reiserfs performance on ssd

2006-04-27 Thread Ming Zhang
read u review. one thing i am not quite understand is the Numbers speak from themselves. It's interesting to note that all filesystems top the write speed at ~106MB/s and read speed at ~125MB/s. It seem we're hitting 32bit PCI throughput limit here . since u said the iram use pci slot for power

Re: reiserfs performance on ssd

2006-04-27 Thread Sander
Jure Pe??ar wrote (ao): I have a simple solid state disk to play with here. See http://nerv.eu.org/iram/ Interesting review, thanks. To get better reliability you could raid1 them. I guess this is a 'must' anyway when used in servers (just like with harddisks). Have to try this product

Re: reiserfs performance on ssd

2006-04-27 Thread Sander
Ming Zhang wrote (ao): read u review. one thing i am not quite understand is the Numbers speak from themselves. It's interesting to note that all filesystems top the write speed at ~106MB/s and read speed at ~125MB/s. It seem we're hitting 32bit PCI throughput limit here . since u said

Re: reiserfs performance on ssd

2006-04-27 Thread Ming Zhang
o, yes. thx. http://www.anandtech.com/storage/showdoc.aspx?i=2480p=10 see this review, when copy a large iso file, the speed is still around ~100MB/s. and this review also use a ASUS A8N motherboard. so none of these tests can 100% reflect the real performance. we need a nice SATA controller

Re: reiserfs performance on ssd

2006-04-27 Thread Gregory Maxwell
On 4/27/06, Sander [EMAIL PROTECTED] wrote: I have a simple solid state disk to play with here. See http://nerv.eu.org/iram/ Interesting review, thanks. To get better reliability you could raid1 them. I guess this is a 'must' anyway when used in servers (just like with harddisks). Have

Re: quicker mount

2006-04-27 Thread Michael Weissenbacher
Hi, It takes so long to mount since ReiserFS reads all the bitmaps before mounting. The larger the file system, the longer it takes. I wonder why it has to read all of them. Are they stored in RAM after reading? Otherwise I cannot see why it should be done at all. with kind regards, --

Re: quicker mount

2006-04-27 Thread Jeff Mahoney
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Michael Weissenbacher wrote: Hi, It takes so long to mount since ReiserFS reads all the bitmaps before mounting. The larger the file system, the longer it takes. I wonder why it has to read all of them. Are they stored in RAM after reading?

Re: reiserfs performance on ssd

2006-04-27 Thread Gregory Maxwell
On 4/27/06, Toby Thain [EMAIL PROTECTED] wrote: Sure ECC would be nice, but how does this differ from disk? Silent failures are certainly possible. The fact that error detection and propagation doesn't really happen in modern disk subsystems is why systems like Sun's ZFS are coming into

reiser4 problem deleting files / directories

2006-04-27 Thread Daniel Kasak
Hi all. I just ran out of space while compiling, and went to delete everything in /var/tmp/portage. I get the error: rm: reading directory `/var/tmp/portage/nautilus-2.12.2//work/nautilus-2.12.2/cut-n-paste-code': Input/output error rm: cannot remove directory