Is this just mke2fs or is the created file system slow as well. For 3ware, and most other raid controllers I do the below 3 things. Note that I don't think that 1-2 will speed the mke2fs up.
1)Put this in your /etc/sysctl.conf, and run this command `sysctl -e -p /etc/sysctl.conf` vm.max-readahead = 256 vm.min-readahead = 128 2)Create your ext2/3 partitions with -R stride=(what your stripe size is) 3) Set the mke2fs sync variable. Before creating the file system. This might help if you are having vm troubles. `export MKE2FS_SYNC=10` PS-If you want me to see any replies send directly to me as well as the list. Daryl Herzmann wrote: > Hey RHers! > > I must be doing something very stupid, so I hope someone can help me out. > :) > > Problem: > Horrible performance with any drive connected to the 3ware ATA-Raid > Contoller. > > Cards in computer: > > - 4X AGP NVIDIA NV11 > - 3ware ATA-RAID 7410 > - 3ware ATA-RAID 7410 > - Intel EEPro 100 > - National Semiconductor ns83820 > - 3ware ATA-RAID 7410 > > Specs: > AMD Athlon(TM) XP 1800+ > 512 MB DDR Memory > > > I have tried multiple kernel versions and RH 7.2 and 7.3. Currently I am > using a patched 2.4.18-7 distributed by ASLabs which contains the latest? > 3ware drivers 1.02.00.020 > > I have tried using a hardware raid 5 with 4 drives on each controller. > Running "mke2fs -j" takes over 40 minutes and the load average approaches > 3 or 4. I have then tried a software raid 5 with similar results. mke2fs > will stall at about 115 when writing the inode table and slowly progress > through the rest of them. > > My guess is that I am not formatting the filesystem incorrectly, so I may > need guidance there. Otherwise, I am quite confused. I tried using SGI > XFS and the filesystem will get generated almost immediately, but the > resulting performance is terrible. For example, sync takes forever after > doing some IO, and the load average goes through the roof. > > Augh, I am confused. I must be doing something stupid. > > Ohh, 1 of the hard drives is on the onboard IDE controller and it just > flies :) No system load troubles either. > > Thanks, > Daryl > > > > > _______________________________________________ > Redhat-list mailing list > [EMAIL PROTECTED] > https://listman.redhat.com/mailman/listinfo/redhat-list > > _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
