Re: Intel's X25-M SSD
От | Bruce Momjian |
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Тема | Re: Intel's X25-M SSD |
Дата | |
Msg-id | 200809240324.m8O3Ovn06515@momjian.us обсуждение исходный текст |
Ответ на | Re: Intel's X25-M SSD (Greg Smith <gsmith@gregsmith.com>) |
Ответы |
Re: Intel's X25-M SSD
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Список | pgsql-performance |
Greg Smith wrote: > On Mon, 8 Sep 2008, Merlin Moncure wrote: > > > What's interesting about the X25 is that they managed to pull the > > numbers they got out of a MLC flash product. They managed this with a > > DRAM buffer and the custom controller. > > I finally found a good analysis of what's wrong with most of the cheap MLC > drives: > > http://www.anandtech.com/cpuchipsets/intel/showdoc.aspx?i=3403&p=7 > > 240ms random write latency...wow, no wonder I keep hearing so many reports > of cheap SSD just performing miserably. JMicron is one of those companies > I really avoid, never seen a design from them that wasn't cheap junk. > Shame their awful part is in so many of the MLC flash products. I am surprised it too so long to identify the problem. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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