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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]Re: [tlug] SSD caching of 10x 10GB files on slow NAS
- Date: Fri, 28 Dec 2012 15:34:34 +0900
- From: Curt Sampson <cjs@example.com>
- Subject: Re: [tlug] SSD caching of 10x 10GB files on slow NAS
- References: <CAL=gY80QoGCW9_TnDBF7ix_qyO72iBmaxoWNUKS9LZow9RhYag@mail.gmail.com> <20121228020442.GE5363@homeric.cynic.net> <CAL=gY80yQeT__3-WSzsp8RNSDUv-d_F5a6fqZLYoS+qmWhJFuA@mail.gmail.com>
- User-agent: Mutt/1.5.21 (2010-09-15)
On 2012-12-28 12:30 +0900 (Fri), Miles Colman wrote: > Thanks Curt! Your point is well taken. The problem is slow random access to > 10 GB files on the NAS. About 10 to 30 10 GB files will be open at any one > time. The number of files open is irrelevant so long as it's not in the thousands or tens of thousands. What is your working set size? I find it hard to believe that it's really 300 GB, since accessing each block in such a working set just once is an hour-long operation on gigbit Ethernet. Keeping the application you're using a secret doesn't help much, either. I'd guessed you were doing video editing, actually, but clearly your application is nothing at all like that. cjs -- Curt Sampson <cjs@example.com> +81 90 7737 2974 To iterate is human, to recurse divine. - L Peter Deutsch
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