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Message-ID: <1181735790.466fdb6e87626@webmail.ics.forth.gr> Date: Wed, 13 Jun 2007 14:56:30 +0300 From: mcatos@....forth.gr To: linux-kernel@...r.kernel.org Subject: Request merging not doing well I did some tests to see how requet merging works. Using a dummy ramdisk block device, I did 'dd count=100 bs=4096 if=/dev/zero of=/dev/foo' (using the anticipatory scheduler) and in the request function I got 10 requests: req 1, sector 0, 8 sectors req 2, sector 8, 8 sectors . . . req 10, sector 72, 8 sectors Shouldn'y these requests be merged? Queue default values are: 255 max sectors, 128 max requests. Thanx. ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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