These tests are with a 64MB Infineon flash, 512 byte pages. 44MB MTD partition: (time in seconds) JFFS2 YAFFS Mount time: 1.8 29.46 Umount time: 0.05 0.10 Write 5.2MB: 29.5 9.82 Read 5.2MB 4.5 3.49 Second mount with files in partition: 3.75 26.51 In general, YAFFS appears to be significantly faster than JFFS2. Is there a reason why the mounts are so slow? I thought that this was a feature of YAFFS. Thanks Allen