On Wed, Dec 23, 2020 at 07:59:13PM +0100, Matteo Croce wrote: > > Hi, > > these are the blktrace outputs for both journaling modes: Can you send me full trace files (or the outputs of blkparse) so we can see what's going on at a somewhat more granular detail? They'll be huge, so you may need to make them available for download from a web server; certainly the vger.kernel.org list server isn't going to let an attachment that large through. Thanks, - Ted