Thanks for the tip, bkltrace seems to give me what I want and much more! (iostat doesn't give me block address) On 1 June 2011 10:34, dexen deVries <dexen.devries@xxxxxxxxx> wrote: > Hi Dima, > > > On Wednesday 01 June 2011 19:32:07 you wrote: >> I'm trying to analyze how different filesystems, settings and user >> mode settings interact with write amplification and write endurance on >> flash. >> >> Thus I need to get details of every write that fs issues to the >> underlying block device. > > Have you considered either of: > > > # iostat -d -k 1 > > http://linux.die.net/man/8/blktrace > > > -- > dexen deVries > > ``One can't proceed from the informal to the formal by formal means.'' > -- > To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at Âhttp://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html