Embedded Linux Interprocess Communication Mechanisms Benchmark 2nd Part

This is the second part of the benchmark of some IPC on Embedded Linux.  See the previous post: Embedded Linux Interprocess Communication Mechanisms Benchmark - Part 1.


Source Code
The source code with the tests can be downloaded from here: ipc_bm.tar.gz.
To compile just adjust the variable CROSS_COMPILE in the main Makefile and do make all.

Results
The listings bellow show the output of the tests
POSIX Message Queue

* IPC Benchmark start
 - POSIX mq server...
 - POSIX mq client...
 - Large message send test:
      0.52 secs,  3870.7 Msgs/s,  3870.7 KiB/s
 - Large message receive test:
      0.52 secs,  3858.2 Msgs/s,  3858.2 KiB/s
 - Medium message send test:
      0.50 secs,  4019.3 Msgs/s,   502.4 KiB/s
 - Medium message receive test:
      0.46 secs,  4386.2 Msgs/s,   548.3 KiB/s
 - Small message send test:
      0.50 secs,  4021.6 Msgs/s,    62.8 KiB/s
 - Small message receive test:
      0.45 secs,  4426.0 Msgs/s,    69.2 KiB/s
 - Event posting test:
      0.34 secs,  5918.5 Msgs/s,    23.1 KiB/s
* IPC Benchmark end.

Shared Memory

* IPC Benchmark start
 - POSIX shared memory server...
 - POSIX shared memory client...
 - Large message send test:
      0.82 secs,  2453.5 Msgs/s,  2453.5 KiB/s
 - Large message receive test:
      0.82 secs,  2447.1 Msgs/s,  2447.1 KiB/s
 - Medium message send test:
      0.80 secs,  2503.6 Msgs/s,   313.0 KiB/s
 - Medium message receive test:
      0.80 secs,  2494.6 Msgs/s,   311.8 KiB/s
 - Small message send test:
      0.79 secs,  2519.9 Msgs/s,    39.4 KiB/s
 - Small message receive test:
      0.80 secs,  2515.5 Msgs/s,    39.3 KiB/s
 - Event posting test:
      0.79 secs,  2540.8 Msgs/s,     9.9 KiB/s
* IPC Benchmark end.

ONC RPC

* IPC Benchmark start
 - ONC RPC Server...
 - ONC RPC Client...
 - Large message send test
   -    1.73 secs,  1156.8 Msgs/s,  1156.8 KiB/s
 - Large message receive test
   -    1.74 secs,  1148.4 Msgs/s,  1148.4 KiB/s
 - Medium message send test
   -    1.65 secs,  1209.0 Msgs/s,   151.1 KiB/s
 - Medium message receive test
   -    1.65 secs,  1211.2 Msgs/s,   151.4 KiB/s
 - Small message send test
   -    1.64 secs,  1219.2 Msgs/s,    19.0 KiB/s
 - Small message receive test
   -    1.66 secs,  1202.1 Msgs/s,    18.8 KiB/s
 - Event posting test
   -    0.25 secs,  7904.5 Msgs/s,    30.9 KiB/s
* IPC Benchmark end.

Comments
In order to run all the tests you must be sure that the following options are enabled in the kernel:

General Setup:
  [*] POSIX Message Queues 
  ...
  Configure standard kernel features (for small systems) :
    [*]   Use full shmem filesystem  

File systems:
  ...
  Pseudo filesystems:
    ...
    [*] Virtual memory file system support (former shm fs) 

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