linux-ext4 - Re: Ext4 on SSD Intel X25-M

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Date:	Sun, 15 Nov 2009 19:46:21 -0200
From:	"Renato S. Yamane" <yamane@...mondcut.com.br>
To:	linux-ext4@...r.kernel.org
CC:	Eric Sandeen <sandeen@...hat.com>,
	Florian Weimer <fw@...eb.enyo.de>, Theodore Tso <tytso@....edu>
Subject: Re: Ext4 on SSD Intel X25-M

On 15-11-2009 19:30, Eric Sandeen wrote:
> Florian Weimer wrote:
>> * Renato S. Yamane:
>>> How can I know the average writes per day?
>>
>> I used iostat (part of sysstat). Perhaps I should have checked first
>> if it is accurate. 8-/
>
> If you're running ext4, you can look at:
> /sys/fs/ext4/sdXX/lifetime_write_kbytes and
> /sys/fs/ext4/sdXX/session_write_kbytes

smartctl show me 229h Power_On_Hours (I buy it one month ago).
And /sys/fs/ext4/sdXX/lifetime_write_kbytes show me 19940467

So:
229h = 9,54 days
19940467 kbytes / 9,54 days = 2Gb/day

I think that it is too much. I use it on my laptop only to see my 
e-mails (Thunderbird) and use OpenOffice.org on my work environment.

Regards and thanks for all!
Renato S. Yamane
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