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 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=w...@singerwang.com -- The best compliment you could give Pythian for our service is a referral.