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[Qemu-devel] IO : Disk Sector Reads not aligned

From: Saptarshi Sen
Subject: [Qemu-devel] IO : Disk Sector Reads not aligned
Date: Wed, 10 Jul 2013 01:04:35 +0800


   I am trying to monitor the disk access pattern from the guest.

   and i am using an IDE as my virtual hard drive. My observation is that

   the sector reads are not 512 bytes aligned.

   I am gathering the stats from hw/ide/core.c in the function

   ide_dma_cb. variable :sector_num

   Should not these disk reads be 512 bytes aligned.

   Please help.


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