Re: Asynchronous FTP Upload

From	"Peter H. Coffin" <hellsop@ninehells.com>
Newsgroups	comp.lang.php
Subject	Re: Asynchronous FTP Upload
Date	2011-01-30 10:02 -0600
Organization	A noiseless patient Spider
Message-ID	<slrnikb2sa.2mh.hellsop@nibelheim.ninehells.com> (permalink)
References	(2 earlier) <2744858b-bb6a-42af-bd77-edd3d355ac62@i39g2000prd.googlegroups.com> <ihv6jd$as1$1@news.eternal-september.org> <sd6g18-j8q.ln1@luuk.invalid.lan> <ii3s2p$7ev$1@news.eternal-september.org> <saag18-ahr.ln1@luuk.invalid.lan>

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On Sun, 30 Jan 2011 15:48:29 +0100, Luuk wrote:
> On 30-01-11 15:20, Jerry Stuckle wrote:
>> Not really.  You're not going to get 1gb/sec. or even 200mb/sec. from
>> the disk drive, especially not continuously.  So even if the download
>> speed on the other end is 200mb/sec, that's still not going to be a
>> limiting factor.
>> 
>> And forcing the disk to pull data from several different files on the
>> disk will slow disk overall disk access even more, especially if the
>> files are contiguous.
>
> But if the files are send to 500 hosts, the file might be in cache,  if
> enough memory is available, which should speed up disk-access again.. ;)

That'd be likely true for for a Very Large system, but I'd not bet on it
for the "hundreds of megabytes" original situation unles it's a
completely dedicated system/cache. There's still other processes going
on that are going to end up with their own stuff.

-- 
If any foreign minister begins to defend to the death a "peace 
conference," you can be sure his government has already placed its 
orders for new battleships and airplanes.  -Joseph Stalin

Thread

Re: Asynchronous FTP Upload Luuk <Luuk@invalid.lan> - 2011-01-30 15:48 +0100
  Re: Asynchronous FTP Upload The Natural Philosopher <tnp@invalid.invalid> - 2011-01-31 12:29 +0000
  Re: Asynchronous FTP Upload bill <nobody@spamcop.net> - 2011-01-31 07:38 -0500
  Re: Asynchronous FTP Upload "Peter H. Coffin" <hellsop@ninehells.com> - 2011-01-30 19:07 -0600
  Re: Asynchronous FTP Upload "Peter H. Coffin" <hellsop@ninehells.com> - 2011-01-30 10:02 -0600
    Re: Asynchronous FTP Upload The Natural Philosopher <tnp@invalid.invalid> - 2011-01-30 17:06 +0000
  Re: Asynchronous FTP Upload The Natural Philosopher <tnp@invalid.invalid> - 2011-01-30 17:04 +0000

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