Re: [PATCH 1/1] fat: improve sync performance by grouping writes revised

From: OGAWA Hirofumi
Date: Tue Oct 31 2006 - 15:24:35 EST


"Holden Karau" <holden@xxxxxxxxxxxxx> writes:

> The performance increase is pretty small. Using an old external dirve
> I had lying around I got:
> diff -y stock/10k modified/10k
> 10240+0 records in | 1024+0
> records in
> 10240+0 records out | 1024+0
> records out
> 5242880 bytes transferred in 18.280922 seconds (286795 bytes/ | 524288
> bytes transferred in 1.824985 seconds (287283 bytes/se

1024 records out 1.824985 seconds. Is there decrease case? I assume
the result is same. So, we would need different approach.

> diff -y stock/1k modified/1k
> 1024+0 records in 1024+0
> records in
> 1024+0 records out 1024+0
> records out
> 524288 bytes transferred in 1.777250 seconds (295000 bytes/se | 524288
> bytes transferred in 1.764748 seconds (297089 bytes/se
--
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
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