Re: [PATCH -mm] make swapin readahead skip over holes

[KOSAKI Motohiro]

> Also, I doubt current swap_cluster default is best value on nowadays.

I meant, current average hdd spec is,
 - average seek time: 8.5ms
 - sequential access performance: about 60MB/sec

so, we can eat free lunch up to 7MB ~= 60(MB/sec) * 1000 / 8.5(ms).
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