Hi there, First of all thanks for all the ext3 development! I run it on my laptop and it has saved me many times from lengthy fscks :-) However, I have observed that whenever something is doing a lot of writing to an ext3 filesystem other processes that involves I/O on the same disk are blocked for long times (often in the 10-30 secs range). For example, if I cp a 1.5 Gb file from one ext3 partition to another ext3 partition and I try to do ls on some dir, the ls usually blocks between 10 and 30 secs before giving a response (the CPU usage is no more than 10% during this). However if the destination partition for the cp is mounted as ext2, the ls command responds almost immediately. Is there some setting that can be tuned to avoid such a behaviour? I'm currently running RedHat 7.2, kernel 2.4.9-21 hdparm /dev/hda: /dev/hda: multcount = 16 (on) I/O support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 2343/240/63, sectors = 35433216, start = 0 And from dmesg: hda: IBM-DARA-218000, ATA DISK drive hda: 35433216 sectors (18142 MB) w/418KiB Cache, CHS=2343/240/63, UDMA(33) Thanks for any help, Diego -- ------------------------------------------------------- Diego Santa Cruz PhD. student Publications available at http://ltswww.epfl.ch/~dsanta Signal Processing Laboratory (LTS) Swiss Federal Institute of Technology (EPFL) EPFL - DE - LTS, CH-1015 Lausanne, Switzerland E-mail: Diego.SantaCruz@epfl.ch Phone: +41 - 21 - 693 26 57 Fax: +41 - 21 - 693 76 00 -------------------------------------------------------
