checkpoint duration

I have a serious problem with checkpoint duration which cause my posting process to almost double in duration because of the amount of time wasted on checkpoints. Here is a a sample of the duration take directly from the online log file. 05:32:00 Checkpoint Completed: duration was 20 seconds. 05:34:54 Checkpoint Completed: duration was 93 seconds. 05:37:02 Checkpoint Completed: duration was 50 seconds. 05:38:40 Checkpoint Completed: duration was 13 seconds. 05:40:19 Checkpoint Completed: duration was 16 seconds. 05:43:12 Checkpoint Completed: duration was 93 seconds. 05:45:26 Checkpoint Completed: duration was 59 seconds. 05:47:06 Checkpoint Completed: duration was 14 seconds. 05:48:44 Checkpoint Completed: duration was 14 seconds. 05:51:24 Checkpoint Completed: duration was 85 seconds. 05:53:37 Checkpoint Completed: duration was 58 seconds. 05:55:16 Checkpoint Completed: duration was 14 seconds. 05:56:54 Checkpoint Completed: duration was 12 seconds. 05:59:35 Checkpoint Completed: duration was 86 seconds. 06:01:57 Checkpoint Completed: duration was 65 seconds. 06:03:42 Checkpoint Completed: duration was 14 seconds. 06:05:21 Checkpoint Completed: duration was 14 seconds. 06:08:00 Checkpoint Completed: duration was 80 seconds. 06:10:21 Checkpoint Completed: duration was 65 seconds. 06:12:05 Checkpoint Completed: duration was 15 seconds. 06:13:48 Checkpoint Completed: duration was 15 seconds. 06:16:24 Checkpoint Completed: duration was 78 seconds. 06:18:55 Checkpoint Completed: duration was 72 seconds. 06:20:31 Checkpoint Completed: duration was 14 seconds. 06:22:11 Checkpoint Completed: duration was 15 seconds. 06:24:20 Checkpoint Completed: duration was 53 seconds. 06:26:44 Checkpoint Completed: duration was 70 seconds. 06:28:25 Checkpoint Completed: duration was 31 seconds. 06:30:08 Checkpoint Completed: duration was 18 seconds. 06:31:49 Checkpoint Completed: duration was 21 seconds. 06:34:14 Checkpoint Completed: duration was 71 seconds. 06:36:16 Checkpoint Completed: duration was 47 seconds. 06:37:56 Checkpoint Completed: duration was 16 seconds. 06:39:34 Checkpoint Completed: duration was 16 seconds. 06:41:57 Checkpoint Completed: duration was 65 seconds. 06:44:20 Checkpoint Completed: duration was 69 seconds. 06:46:02 Checkpoint Completed: duration was 15 seconds. 06:47:42 Checkpoint Completed: duration was 14 seconds. 06:49:52 Checkpoint Completed: duration was 56 seconds. 06:52:48 Checkpoint Completed: duration was 104 seconds. 06:54:25 Checkpoint Completed: duration was 14 seconds. 06:56:00 Checkpoint Completed: duration was 12 seconds. 06:58:10 Checkpoint Completed: duration was 47 seconds. 07:00:41 Checkpoint Completed: duration was 76 seconds. 07:02:20 Checkpoint Completed: duration was 15 seconds. 07:04:06 Checkpoint Completed: duration was 14 seconds. NOTE: This is a non-logging database for decision support. The long checkpoints occur during posting of data. The following is a listing of the parameters from the onconfig file. PHYSFILE 75000 # Physical log file size (Kbytes) LOCKS 200000 # Maximum number of locks BUFFERS 200000 # Maximum number of shared buffers(12/11/97) NUMAIOVPS 1 # Number of IO vps (tap was 0 3/5/97) PHYSBUFF 512 # Physical log buffer size (Kbytes) LOGBUFF 32 # Logical log buffer size (Kbytes)LOGSMAX 40 # Maximum number of logical log files CLEANERS 120 # Number of buffer cleaner processes(12/11/97) SHMBASE 0x10000000 # Shared memory base address SHMVIRTSIZE 1280000 # initial virtual shared memory segmentsize SHMADD 128000 # Size of new shared memory segments (Kbytes) SHMTOTAL 1900000 CKPTINTVL 30000 # Check point interval (in sec) LRUS 64 # Number of LRU queues(2/20/98) LRU_MAX_DIRTY 2 # LRU percent dirty begin cleaning limit LRU_MIN_DIRTY 1 # LRU percent dirty end cleaning limit Regards, Willie Meeks