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#153689 - 07/04/2003 12:04 Emptool arithmetic problem
tms13 old hand Registered: 30/07/2001 Posts: 1115 Loc: Lochcarron and Edinburgh	Emptool can't do its sums properly: 1260 Drive 0 size: 18976M, free: 1489M, used: 17487M (92%) 1260 Drive 1 size: 28497M, free: 16042M, used: 12455M (43%) 1260 = Total size: 33241M, free: 16414M, used: 16827M (50%) Last time I checked, 18976+28497=47473...and the total used is really wierd! _________________________ Toby Speight 030103016 (80GB Mk2a, blue) 030102806 (0GB Mk2a, blue)
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#153690 - 07/04/2003 12:56 Re: Emptool arithmetic problem [Re: tms13]
Yang addict Registered: 14/01/2002 Posts: 443 Loc: Raleigh, NC	Free and Used doesn't add up either.. Should be 17531M free and 29942M used.
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#153691 - 07/04/2003 13:06 Re: Emptool arithmetic problem [Re: tms13]
peter carpal tunnel Registered: 13/07/2000 Posts: 4180 Loc: Cambridge, England	really wierd Due to the insane way this was coded (in emptool/playerdb.cpp:LogFreeSpace(), go and look) it gets the totals wrong if the music partitions were formatted with different block sizes. The sizes for each individual drive are correct. Peter
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#153692 - 07/04/2003 13:10 Re: Emptool arithmetic problem [Re: peter]
tfabris carpal tunnel Registered: 20/12/1999 Posts: 31597 Loc: Seattle, WA	it gets the totals wrong if the music partitions were formatted with different block sizes. Would this only happen if the drives hadn't been prepared with the builder images (i.e., they were partitioned and formatted by hand)? _________________________ Tony Fabris
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#153693 - 07/04/2003 13:15 Re: Emptool arithmetic problem [Re: tfabris]
peter carpal tunnel Registered: 13/07/2000 Posts: 4180 Loc: Cambridge, England	Would this only happen if the drives hadn't been prepared with the builder images (i.e., they were partitioned and formatted by hand)? Good question. It's quite possible that we've upgraded the builder image over the years, or even that we use mke2fs in a mode whereby it chooses the block size based on the partition size. The Right Thing, which I've no idea whether we do, is to use big block sizes (4K) for music partitions, as almost 50% of files are much, much bigger than that and it saves space on the block-in-use bitmaps, indirect blocks, and so on. Peter
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#153694 - 07/04/2003 13:20 Re: Emptool arithmetic problem [Re: peter]
peter carpal tunnel Registered: 13/07/2000 Posts: 4180 Loc: Cambridge, England	or even that we use mke2fs in a mode whereby it chooses the block size based on the partition size. Bingo. Peter
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