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From "Kapila Dissanayake" <kapi...@gmail.com>
Subject Re: [AXIS2] MTOM performance Measuring
Date Tue, 09 May 2006 20:16:38 GMT
Hi,

I did some testing agian with to measure the binary file transfer times. In
axis2 c data_handler.c, different buffer sizes (1024 and 1024*1024) were
used to read files.

I think using fixed size buffers to read binary files in axis2-C has been
affected in some cases to slow down the transfer.

Thanks

Kapila

Please see the following test results

     Environment     ----------     Processor - Intel Celeron M 1.40GHz    RAM
- 256 MB     OS - Fedora Core 4.     Java Server - axis2 Java    C Server -
axis2     mtom C and java test clients were used



Time Taken in milli seconds
               File Size (kb)   Java Server (ms) Java Server (ms)    C
Server (ms)   C Server (ms)     Java Client (ms) C Client (ms)    C Client
(ms)    Java Client (ms)             *Buffer Size* *1024* *1024 X 1024* * *
*1024* *1024 X 1024* ----------------- ----------------- -----------------
----------------- ----------------- ----------------- -----------------
----------------- ----------------- ----------------- -----------------
----------------- 13.8   147   158     73 1884   188 143 28.2   515   488
  78 1912   222 413 37.8   538   694     131 1917   232 474 132   571   807
    212 2177   263 420 154   547   672     239 2215   347 389 165   688
683     397 2380   364 400 561   1340   1024     995 2537   637 899 762
1766   1336     1903 2890   1248 1218 1162   3464   1970     4859 3602
1702 1718 1761   4666   3274     10928 8028   2780 3249 2081   6777   2993
  15066 11008   3595 3281 4241   23038   Could not transfer (Java client
Broken)     52853 33351   16234 115777


On 5/8/06, Samisa Abeysinghe <samisa@wso2.com> wrote:
>
> Hmmm, Interesting. There seem to be a problem in C client in case of
> large attachments.
> This must be due to the fact that we are using a loop to read the file.
> If we stat and read the file at once, there could be an improvement.
>
> Why is it so slow, in C vs C case? (Third column) This is worth
> investigating.
>
> Thanks,
> Samisa...
>
> Kapila Dissanayake wrote:
>
> > Hi,
> >
> > I did some testing on binary attachment transfer times, with axis2
> > 'java' and 'C' servers with sample mtom clients. It took very high
> > transfer times for large size attachments. Some minor modificaions
> > were done to the data_handler.c and it was sent to the mailing list.
> >
> >
> > (File Size) vs (Time Taken in milli seconds) to transfer binary
> > attachments
> >
> > Environment
> > ----------
> > Processor - Intel Celeron M 1.40GHz
> > RAM - 256 MB
> > OS - Fedora Core 4.
> > Java Server - axis2 Java
> > C Server - axis2
> > mtom C and java test clients were used
> > Time Taken in milli seconds
> >
> > File Size (kb)
> >
> > Java Server
> >
> > (ms)
> >
> > Java Server
> >
> > (ms)
> >
> >  C Server
> >
> > (ms)
> >
> > C Server
> >
> > (ms)
> >
> >
> >
> >
> > Java Client
> >
> > (ms)
> >
> > C Client
> >
> > (ms)
> >
> >  C Client
> >
> > (ms)
> >
> >  Java Client
> >
> > (ms)
> > ---------------
> >
> > ---------------
> >
> > ---------------
> >
> > ---------------
> >
> > ---------------
> >
> > ---------------
> >
> > ---------------
> >
> > ---------------
> >
> > ---------------
> > 28
> >
> >
> >
> > 445
> >
> >
> >
> > 274
> >
> >
> >
> > 2004
> >
> >
> >
> > 1009
> >
> >
> > 38
> >
> >
> >
> > 617
> >
> >
> >
> > 297
> >
> >
> >
> > 1957
> >
> >
> >
> > 842
> >
> >
> > 132
> >
> >
> >
> > 593
> >
> >
> >
> > 527
> >
> >
> >
> > 2181
> >
> >
> >
> > 726
> >
> >
> > 154
> >
> >
> >
> > 551
> >
> >
> >
> > 447
> >
> >
> >
> > 2081
> >
> >
> >
> > 677
> >
> >
> > 165
> >
> >
> >
> > 440
> >
> >
> >
> > 743
> >
> >
> >
> > 2147
> >
> >
> >
> > 676
> >
> >
> > 561
> >
> >
> >
> > 1029
> >
> >
> >
> > 418
> >
> >
> >
> > 2581
> >
> >
> >
> > 1075
> >
> >
> > 762
> >
> >
> >
> > 2137
> >
> >
> >
> > 1572
> >
> >
> >
> > 3231
> >
> >
> >
> > 2356
> >
> >
> > 1162
> >
> >
> >
> > 3172
> >
> >
> >
> > 2962
> >
> >
> >
> > 3981
> >
> >
> >
> > 3100
> >
> >
> > 1761
> >
> >
> >
> > 7672
> >
> >
> >
> > 5494
> >
> >
> >
> > 8186
> >
> >
> >
> > 3041
> >
> >
> > 2081
> >
> >
> >
> > 7768
> >
> >
> >
> > 6837
> >
> >
> >
> > 11757
> >
> >
> >
> > 3499
> >
> >
> > 4241
> >
> >
> >
> > 14465
> >
> >
> >
> > 24060
> >
> >
> >
> > 36168
> >
> >
> >
> > Could not transfer (Error Occured in Java client)
> >
> >
> >
> >
> > Thank You
> >
> > Kapila
>
>
>

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