On Wed, Nov 22, 2006 at 08:10:13PM -0800, David Miller wrote: > From: David Chinner <dgc@xxxxxxx> > Date: Thu, 23 Nov 2006 12:18:09 +1100 > > > So, assuming the stacks less than 32 bytes are 32 bytes, we've got > > 1380 bytes in the XFS stack there, > > On sparc64 just the XFS parts of the backtrace would be a minimum of > 2816 bytes (each function has a minimum 8 * 16 byte stack frame, and > there are about 22 calls in that trace). It's probably a lot more > with local variables and such. > > It's way too much. You guys have to fix this stuff. > > If TCP's full send and receive path can be done in less function > calls, XFS can allocate blocks in less too. > > I would even say 10 function calls deep to allocate file blocks > is overkill, but 22 it just astronomically bad. Especially since a large part is due to cxfs... - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
