Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [Ext2-devel] [PATCH] distributed counters for ext2 to avoid group scaning | From | Alex Tomas <> | Date | 17 Mar 2003 18:09:54 +0300 |
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>>>>> Matthew Wilcox (MW) writes: MW> And then we have 3 of these (an additional 3k..). Per MW> blockgroup. My 4GB / has 30 blockgroups; my 30GB /home has 232. MW> So that's a little under 8 per GB. My _laptop_ has a 40GB drive, MW> so that's on the order of 320 blockgroups -- almost an additional MW> megabyte of ram consumed for these counters.
no-no!
_one_ dcounter to maintain number of free blocks _per_ fs. _one_ dcounter to maintain number of inode blocks _per_ fs. _one_ dcounter to maintain number of dirs _per_ fs.
3 dcounter per fs. no more.
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