Rodolfo Andrade wrote:
22k * 22 k = 484 millions...
that's really a lot of data and should take a lot of time and processing
power.
I don't think it's really a bug.
Yeah, I guess not. I guess ~500,000 records/sec isn't so terrible.
Is there a more efficient way to difference large sets of data?
Regards,
Rodolfo Andrade
----- Original Message -----
From: Jesse Guardiani
To: php-general@xxxxxxxxxxxxx
Sent: Tuesday, January 10, 2006 5:07 PM
Subject: problem with large arrays in php 4.3.2
Hello,
I have an old version of php (4.3.2) that is acting rather strangely. I'm
searching two large arrays (approx 22,000 records in each) using
array_diff_key() from the PEAR PHP_Compat library:
$result = $args[0];
foreach ($args[0] as $key1 => $value1) {
for ($i = 1; $i !== $array_count; $i++) {
foreach ($args[$i] as $key2 => $value2) {
if ((string) $key1 === (string) $key2) {
unset($result[$key2]);
break 2;
}
}
}
}
And I'm getting aweful performance. I know it's a ton of records (22,000 *
22,000), but it shouldn't take 16 minutes on a P4 Xeon 2.4ghz!
Has anyone seen this before? Is this a bug? Or are my math skills lacking
and
this is perfectly normal performance for the size of the data set?
Thanks!
--
Jesse Guardiani
Programmer/Sys Admin
jesse@xxxxxxxxxxx
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
