note 79876 added to function.crc32
| From: | daniele_dll at yahoo dot it | Date: | Mon, 17 Dec 2007 16:44:12 +0000 |
| Subject: | note 79876 added to function.crc32 | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-133729@lists.php.net to get a copy of this message | ||
In response to manuel at sadism-softworks dot de ( http://it2.php.net/manual/en/function.crc32.php#75061
)
You should never buffer all this stuff because you will need a lot of I/O without any really
benefit! In a normal case (7.200rpm disk with ide/sata 8/16mb of cache) you should not read more
that 8kb, or, at least, not more of 16kb.
The reason is simple: if you read, for example, of 128kb the system will do 16 i/o reads each of
8kb!
So the performance will be the same (or really near) but you will use really few memory for the
script ... in that way you let to the server to have more memory for other scripts and stuffs
----
Server IP: 80.241.173.254
Probable Submitter: 79.15.22.97
----
Manual Page -- http://www.php.net/manual/en/function.crc32.php
Edit -- https://master.php.net/note/edit/79876
Del: integrated -- https://master.php.net/note/delete/79876/integrated
Del: useless -- https://master.php.net/note/delete/79876/useless
Del: bad code -- https://master.php.net/note/delete/79876/bad+code
Del: spam -- https://master.php.net/note/delete/79876/spam
Del: non-english -- https://master.php.net/note/delete/79876/non-english
Del: in docs -- https://master.php.net/note/delete/79876/in+docs
Del: other reasons-- https://master.php.net/note/delete/79876
Reject -- https://master.php.net/note/reject/79876
Search -- https://master.php.net/manage/user-notes.php