you noticed that most optimizing in 5.5 affects InnoDB and if you are using MyISAm in your benchmark it is useless?
having MySQL 5.5 running on InnoDB with some GB big tables
and REALLY concuerrent load as for a mailserver (dbmail)
you will notice a hughe performance increasment
Am 16.08.2011 23:28, schrieb Alvin Ramos:
> 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: w...@pythian.com [mailto:w...@pythian.com] On Behalf Of Singer X.J. Wang
> Sent: Tuesday, August 16, 2011 4:08 PM
> To: Alvin Ramos
> Cc: Prabhat Kumar; Reindl Harald; mysql@lists.mysql.com
> 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 <alvin.ra...@reachsmart.com> 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 <aim.prab...@gmail.com> 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
>> <h.rei...@thelounge.net>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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>
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>
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