Slow network/disk performance when virtualized on a win2008 server with virtualbox


  • i virtualized on virtualbox installed on a win2008srv fog 0.33b.

    i used lvm and dynamic virtual disk allocation.

    The transfer rate uploading a image starts at 700MB/min but after some minutes lowers to 150MB/s.

    someone know howto make this virtual system run faster?


  • One, add more CPU’s to it. On an upload process, it has to compress the image as it’s being uploaded.

    Two, check the compression setting, it’s on the FOG Configuration->FOG Settings menu called: FOG_PIGZ_COMP and should appear as a slider bar. 9 is best/most compression (most cpu intensive and takes time) and 0 is the worst/fastest compression (less compression means more space is used)

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