Re: Node.js performance

[Henrik Rützou <hr@xxxxxxxxxxxx>]

The test is performed for each program

call 1-3 doesn't count thereafter an avage of 10 calls done with F5 as soon
as the
result is returned to the browser

On Thu, Mar 2, 2017 at 7:08 PM, Justin Taylor <JUSTIN@xxxxxxxxxxxxx> wrote:

> Are those times for a single request?
>
> -----Original Message-----
> From: Henrik Rützou [mailto:hr@xxxxxxxxxxxx]
> Sent: Wednesday, March 01, 2017 6:38 PM
> To: Web Enabling the AS400 / iSeries <web400@xxxxxxxxxxxx>
> Subject: [WEB400] Node.js performance
>
> I have now performed performance test and here are some figures:
>
> Windows machine:
> WIN 8 Prof - Intel I3 2 cores 3.4 Ghz, 16GB ram
>
> IBM i V7R3 (IBM PDP) - POWER8 2 cores, 3,32 Ghz, 4GB ram
>
> zDemo01.js (reads IFS JSON file based on QIWS/QCUSTCDT and writes JSON
> output through zJsonStore
>
> WIN: 0.7ms
> IBM: 0.5ms
>
> zDemo05.pgm, RPGLE - runs native SQL and reforms result using
> powerEXT/YAJL zDemo06.js, javascript - runs db2a SQL and output JSON result
> via JSON.stringify The program basically does the same.
>
> IBM - zDemo05.pgm: 0.7ms
> IBM - zDemo06.js: 17ms
>
> All programs are run in a sequense of call's and cold starts are left out
> of the average times.
>
> Another little thing about running in blocked mode vs. unblocked:
>
> When I start my HTTP daemon it writes a log that previuous was done with
> console.log but now writes to a log.txt file in unblocked mode.
>
> $Util.log('\r\n')
> $Util.log('powerEXT node.js HTTP Daemon Starting')
> $Util.log('  root:       ' + modRoot);
> $Util.log('  scope:      ' + scope);
> $Util.log('  port:       ' + port);
> $Util.log('  reloadMode: ' + funcObj.reloadMode); $Util.log('
> versions:\r\n' + JSON.stringify(process.versions, null, "\t"));
>
> The result of console.log (blocked mode) and log.txt (unblocked mode) is
> that in the console the messages comes in the sequense they are made but in
> log.txt is written in a random order.
>
> This may also be the case if you write to Data Queues where queue-entries
> even from the same node.js script may be received by the backend server
> program in the wrong order.
>
> --
> Regards,
> Henrik Rützou
>
> http://powerEXT.com <http://powerext.com/>
>
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