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From: erik quanstrom <quanstro@labs.coraid.com>
To: 9fans@9fans.net
Subject: Re: [9fans] simple venti demo:
Date: Thu, 11 Aug 2011 13:28:43 -0400	[thread overview]
Message-ID: <7d25ae781f59985f949b025bbc0324bb@coraid.com> (raw)
In-Reply-To: <CAP6exYJEgJ=KbAtiQR5+qPzYPwWgPU0xtxV1wDY4H_BN_5pWTg@mail.gmail.c>

> > question cannot be answered due to insufficient
> > information about what "better" means.  are you after
> > performance or reliability?
>
>
> That's part of the question Which is better? ->Why?<-
>
> Maybe I should say 'explain your answer' :-)

you have to define better first, and you have to define
what you mean by "flushing immediately".  i see three
general approaches to this problem, flush eventually,
flush immediately, and flush before ack.  this is the same
dillema any non content-addressed disk has.  performance
vs. safety.  and of course one size doesn't fit all, so there are knobs in
most disks to turn off write caching.

this is a cs101 prerequsite question, is it not?

- erik



  parent reply	other threads:[~2011-08-11 17:28 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-10 20:53 ron minnich
2011-08-10 21:36 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2011-08-10 21:47   ` ron minnich
2011-08-10 21:54     ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2011-08-10 21:57       ` erik quanstrom
2011-08-10 22:04       ` Bakul Shah
2011-08-10 22:07         ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2011-08-10 22:12           ` ron minnich
2011-08-11 16:15             ` ron minnich
2011-08-11 16:49               ` David Leimbach
2011-08-11 17:18                 ` Latchesar Ionkov
2011-08-11 19:20               ` Bakul Shah
2011-08-11 19:54               ` Bakul Shah
2011-08-11 20:03                 ` erik quanstrom
2011-08-11 20:07                   ` ron minnich
2011-08-11 20:50                     ` David Leimbach
2011-08-11 21:03                       ` ron minnich
2011-08-11 21:19                       ` Fazlul Shahriar
2011-08-11 21:42                         ` David Leimbach
2011-08-11 21:54                           ` ron minnich
2011-08-11 22:00                             ` David Leimbach
2011-08-11 21:59                           ` Fazlul Shahriar
2011-08-11 20:04                 ` ron minnich
2011-08-11 20:20                   ` Bakul Shah
     [not found]                 ` <CAP6exYK9pwpRctLeuehEMdmVVW73sC7VOxujRq-Gwu9=gCDQQQ@mail.gmail.c>
2011-08-11 20:19                   ` erik quanstrom
2011-08-12  7:50               ` dexen deVries
2011-08-12 15:45                 ` ron minnich
     [not found]             ` <CAP6exYLmZXLCgBsczjR5e87B095R231WLp3hi0VZOtxgmBd5kw@mail.gmail.c>
2011-08-11 16:49               ` erik quanstrom
2011-08-11 16:55                 ` David Leimbach
2011-08-11 16:56                 ` ron minnich
     [not found]                 ` <CAP6exYJEgJ=KbAtiQR5+qPzYPwWgPU0xtxV1wDY4H_BN_5pWTg@mail.gmail.c>
2011-08-11 17:28                   ` erik quanstrom [this message]
2011-08-11 17:37                     ` ron minnich
2011-08-11 18:45                       ` David Leimbach
     [not found]                     ` <CAP6exY+0wGYT2ojbmm+8F1R48w0tycgRTR3KGTm_yki9A7cmSw@mail.gmail.c>
2011-08-11 17:58                       ` erik quanstrom
2011-08-11  3:05           ` David Leimbach
2011-08-11  6:21             ` ron minnich
2011-08-11 13:21               ` Eric Van Hensbergen
2011-08-11 15:09               ` Charles Forsyth
2011-08-11 15:16                 ` Eric Van Hensbergen
2011-08-11 17:06                 ` Salman Aljammaz
2011-08-11 18:33             ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2011-08-11 18:46               ` David Leimbach
2011-08-12 16:18 ` Russ Cox
2011-08-12 18:29   ` Wes Kussmaul

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