[lkml]   [2001]   [Oct]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [POT] Which journalised filesystem ?
In article <1002357150.3083.20.camel@volk.internalnet> you wrote:
>> Well hdparm has a -W option with which you can turn on/off the
>> write cache. If that works (and it appears it does) you should be
>> able to turn write cache off, write *one* block so that the
>> cache gets flushed and turn it back on. I'm not sure how to
>> test this, though.

> Doesn't hdparm -W0f do the work?

We are talking about a write barrier. This means you write all stuff which
can be written unordered (all data) and then you initiate the barrier.. and
if that is finished, you write the commit block. That way you can get
increased write performance and still transaction safe persitence.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:04    [W:0.100 / U:1.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site