I know my previous email was vague, it was sent via smartphone. I’ve got a
simple PHP page pulling information from one of larger database tables:
PHP Code:
<html>
<head>
<basefront face="Arial">
</head>
<body>
<?php
// set server access variables
$host = "127.0.0.1";
$user = "web";
$pass = "password";
$db = "md ";
// open connections to database
$connect = mysql_connect($host, $user, $pass) or die ("Unable to connect!");
// select database to use
mysql_select_db($db) or die ("Unable to select database!");
// create SQL query string
$query = "SELECT * FROM members limit 1000";
//execute query and obtain result set
$result = mysql_query($query) or die ("Error in query: $query. " .
mysql_error());
// are there any rows in the result?
if (mysql_num_rows($result) > 0)
{
// yes
// iterate through result set
// format query results as table
echo "<table cellpadding=10 border=1>";
while($row = mysql_fetch_assoc($result))
{
echo "<tr>";
echo "<td>" . $row['member_id'] . "</td>";
echo "<td>" . $row['fname'] . "</td>";
echo "</tr>";
}
echo "</table>";
}
else
{
// no
// print status message
echo "NO rows found!";
}
// close connection
mysql_close($connect);
?>
</body>
</html>
I’ve got apache benchmark then running 5 concurrent connections 10,000 times.
I changed the $host to the IP for the 5.5 server then to the 5.1 server and
here are one of my many results:
5.1 results:
Server Software: Apache/2.2.3
Server Hostname: aramos.dev
Server Port: 80
Document Path: /mysqlfetch51.php
Document Length: 35808 bytes
Concurrency Level: 5
Time taken for tests: 3263.909079 seconds
Complete requests: 10000
Failed requests: 0
Write errors: 0
Total transferred: 359640000 bytes
HTML transferred: 358080000 bytes
Requests per second: 3.06 [#/sec] (mean)
Time per request: 1631.955 [ms] (mean)
Time per request: 326.391 [ms] (mean, across all concurrent requests)
Transfer rate: 107.60 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 2.3 1 155
Processing: 593 1629 699.7 1524 13580
Waiting: 574 1611 699.7 1506 13562
Total: 595 1630 699.7 1526 13580
Percentage of the requests served within a certain time (ms)
50% 1526
66% 1725
75% 1856
80% 1944
90% 2215
95% 2559
98% 4339
99% 4741
100% 13580 (longest request)
5.5 results:
erver Software: Apache/2.2.3
Server Hostname: aramos.dev
Server Port: 80
Document Path: /mysqlfetch.php
Document Length: 35808 bytes
Concurrency Level: 5
Time taken for tests: 3400.300474 seconds
Complete requests: 10000
Failed requests: 0
Write errors: 0
Total transferred: 359640000 bytes
HTML transferred: 358080000 bytes
Requests per second: 2.94 [#/sec] (mean)
Time per request: 1700.150 [ms] (mean)
Time per request: 340.030 [ms] (mean, across all concurrent requests)
Transfer rate: 103.29 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 2.7 1 168
Processing: 595 1697 724.8 1598 14505
Waiting: 577 1679 724.8 1580 14486
Total: 596 1698 724.8 1600 14506
Percentage of the requests served within a certain time (ms)
50% 1600
66% 1799
75% 1939
80% 2028
90% 2314
95% 2640
98% 4387
99% 4805
100% 14506 (longest request)
I’ve ran tests even against our web sites and its slower than the 5.1 server.
Any suggestions, anything I should change on the 5.5 server? The hardware and
OS is identical from the 5.1 server. Thanks!
Alvin Ramos
From: [email protected] [mailto:[email protected]] On Behalf Of Singer X.J. Wang
Sent: Tuesday, August 16, 2011 4:08 PM
To: Alvin Ramos
Cc: Prabhat Kumar; Reindl Harald; [email protected]
Subject: Re: shall i jump from 5.1 to 5.5
Are you doing concurrent workloads?
On Tue, Aug 16, 2011 at 16:04, Alvin Ramos <[email protected]> wrote:
I've been running some bench marking between 5.1 and 5.5 myself and haven't
notice any huge performance improvements on 5.5. Even though white papers claim
it put performs 5.1. Any noticing the same or have some input in my findings?
Regards,
Alvin
On Aug 16, 2011, at 3:55 PM, Prabhat Kumar <[email protected]> wrote:
> correct. you have to understand the problem first.
> but still its recommendable to always use latest stable version.
>
> On Tue, Aug 16, 2011 at 10:02 AM, Reindl Harald <[email protected]>wrote:
>
>>
>>
>> Am 16.08.2011 17:59, schrieb Luis Daniel Lucio Quiroz:
>>> as far as my readings, they claim that 5.5 is the best
>>>
>>> my question is, shall i jump from 5.1 to 5.5.
>>>
>>> right now i have a performance problem, would 5.5 help me in that?
>>>
>>> Regards,
>>>
>>> LD
>>>
>> why do you believe without any information you will get
>> a useful answer? "i have a performance problem" is simply
>> NO information if you even do not tell which storage engine
>> and wich sort of problem in which context
>>
>> if you should update can nobody answer for you because we
>> do not know if you have any crappy apps / scripts which
>> would have troubles?
>>
>> we have upgraded some hundret webspaces and two dbmail-servers
>> in februray becaus we know our self written applications and
>> having test-environments, if you can do this can nobody say
>>
>>
>
>
> --
> Best Regards,
>
> Prabhat Kumar
> MySQL DBA
>
> My Blog: http://adminlinux.blogspot.com
> My LinkedIn: http://www.linkedin.com/in/profileprabhat
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