Hello. I plan to use OCFS2 + DRBD for email server.
Problem: I use "seeker" for testing http://www.linuxinsight.com/how_fast_is_your_disk.html And get this: Results: 65 seeks/second, 15.23 ms random access time Then I do rm of many files - it fals to 10 seeks/second and performance is terrible. What can I do to increase it? What`s wrong? Below is many info. What we have: Debian lenny 2.6.26-2-amd64 ocfs2-tools 1.4.1-1 drbd8-2.6.26-2-amd64 2:8.3.7-1~bpo50+1+2.6.26-21lenny4 drbd8-source 2:8.3.7-1~bpo50+1 drbd8-utils 2:8.3.7-1~bpo50+1 debugfs.ocfs2 -R "stats" /dev/drdb0 Revision: 0.90 Mount Count: 0 Max Mount Count: 20 State: 0 Errors: 0 Check Interval: 0 Last Check: Fri Mar 26 11:54:41 2010 Creator OS: 0 Feature Compat: 1 BackupSuper Feature Incompat: 16 Sparse Tunefs Incomplete: 0 None Feature RO compat: 1 Unwritten Root Blknum: 17 System Dir Blknum: 18 First Cluster Group Blknum: 8 Block Size Bits: 12 Cluster Size Bits: 15 Max Node Slots: 2 Label: ocfs2_drbd0 UUID: 75507E99756D4AE986337FD09BC7B2E1 Cluster stack: classic o2cb Inode: 2 Mode: 00 Generation: 140519344 (0x86027b0) FS Generation: 140519344 (0x86027b0) Type: Unknown Attr: 0x0 Flags: Valid System Superblock User: 0 (root) Group: 0 (root) Size: 0 Links: 0 Clusters: 27476584 ctime: 0x4baca081 -- Fri Mar 26 11:54:41 2010 atime: 0x0 -- Thu Jan 1 00:00:00 1970 mtime: 0x4baca081 -- Fri Mar 26 11:54:41 2010 dtime: 0x0 -- Thu Jan 1 00:00:00 1970 ctime_nsec: 0x00000000 -- 0 atime_nsec: 0x00000000 -- 0 mtime_nsec: 0x00000000 -- 0 Last Extblk: 0 Sub Alloc Slot: Global Sub Alloc Bit: 65535 /etc/init.d/o2cb status Driver for "configfs": Loaded Filesystem "configfs": Mounted Stack glue driver: Loaded Stack plugin "o2cb": Loaded Driver for "ocfs2_dlmfs": Loaded Filesystem "ocfs2_dlmfs": Mounted Checking O2CB cluster ocfs2: Online Heartbeat dead threshold = 31 Network idle timeout: 15000 Network keepalive delay: 2000 Network reconnect delay: 2000 Checking O2CB heartbeat: Active dmesg | grep -i ocfs2 [ 18.821010] OCFS2 Node Manager 1.5.0 [ 18.826429] OCFS2 DLM 1.5.0 [ 18.829955] ocfs2: Registered cluster interface o2cb [ 18.849955] OCFS2 DLMFS 1.5.0 [ 18.849955] OCFS2 User DLM kernel interface loaded [ 304.329154] OCFS2 1.5.0 OCFS2 mount options: nodev,noauto,noatime,data=writeback Nodes connected via 1Gbit\s LAN. HDD is SATA Raptor 10k RPM. Mail storage is 260Gb with 4 million files(maildir) cat /proc/meminfo MemTotal: 4058444 kB MemFree: 3014752 kB Buffers: 585544 kB Cached: 71036 kB SwapCached: 0 kB Active: 326432 kB Inactive: 553292 kB SwapTotal: 1951856 kB SwapFree: 1951164 kB Dirty: 172 kB Writeback: 0 kB AnonPages: 223136 kB Mapped: 15820 kB Slab: 100492 kB SReclaimable: 89588 kB SUnreclaim: 10904 kB PageTables: 4632 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 3981076 kB Committed_AS: 457124 kB VmallocTotal: 34359738367 kB VmallocUsed: 279904 kB VmallocChunk: 34359458171 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB -- Best regards, Proskurin Kriill _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
