Re: [Ext2-devel] [PATCH] distributed counters for ext2 to avoid group scaning

From: Alex Tomas (bzzz@tmi.comex.ru)
Date: Mon Mar 17 2003 - 15:40:12 EST


hi!

>>>>> Andrew Morton (AM) writes:

 AM> Which is why I'm waiting to see some profiles and benchmarks.
 AM> Judging from the last set of profiles, in which
 AM> ext2_count_free_blocks() was not present, this may not be
 AM> justified.

first of all, ext2_count_free_blocks() is used by orlov allocator
only which in turn is used to create dirs only. so, I do not think
dbench may show possible improvement. also, I understand it isn't
bottleneck absolutely, but I think it may reduce memory footprint.
Probably, we may use dcounters for huge fs only (i.e. make it
optional).

with best regards, Alex

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