Hi All I've been looking into a ubifs performance regression on linux-omap 2.6.37. My test is pretty simple, copy a 2Mbyte file and sync. # sync; date; cp 2Mbyte-file foo; sync; date On 2.6.32 and earler, the time between the two dates was around 3 seconds. On linux-omap master it is around 14 seconds. Ouch! At first I thought the problem was due to changes in the OMAP nand drivers, but raw randwrite speed is actually a bit faster. This suggest the finger should be pointed at ubi or ubifs. I then thought that perhaps the layout of my ubinized image might be a contributing factor so I erased the partition, ubiformatted and ubimkvoled. The problem persisted, Any suggestions as to what might be broken or how to debug this deeper? Thanks Charles -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
