Why does system exec cause a memory leak to occur?

Sorry if this has been posted before, but I can't quite figure out why this VI is causing a gigantic memory leak (losing nearly 500K of memory a second). It's a simple system exec call, and I even trivialized everything in order to try and discover the problem.
Does anyone see a huge problem here? I've tried calling up taskkill afterward as well, though that seemed to make little difference.
If you don't trust my trivial program (and you probably shouldn't), I've also included the source files for the program - it's a one-line C++ program that returns immediately.
Any insight is greatly appreciated.
Thanks!
Attachments:
Dilution.vi.zip ‏11 KB

Try putting a wait - even a 0 second wait - in your loop and see if it makes a difference. Without a wait, LabVIEW will try to run that loop as fast as possible, possibly so fast that it never yields time to free resources.

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Can anybody also try this and tell me what you see?
BTW, some people in online community tried the code on Windows and it seemed to worked fine. I didn't tried it on windows. I only tried in Linux as I thought that where people use Java for. So, it seems this issue happened on Linux).
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Good point, I actually run cat /proc/meminfo. And I got the following. Why I have so big of Inactive(file) allocation?
MemTotal:       15239492 kB
MemFree:           83424 kB
Buffers:           76012 kB
Cached:         13920152 kB
SwapCached:            0 kB
Active:           391104 kB
Inactive:       14181268 kB
Active(anon):     288124 kB
Inactive(anon):   288268 kB
Active(file):     102980 kB
Inactive(file): 13893000 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:        500432 kB
SwapFree:         500432 kB
Dirty:           2568700 kB
Writeback:          6064 kB
AnonPages:        576292 kB
Mapped:             9884 kB
Shmem:               140 kB
Slab:             472340 kB
SReclaimable:     421692 kB
SUnreclaim:        50648 kB
KernelStack:        1192 kB
PageTables:         4132 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
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Committed_AS:     835900 kB
VmallocTotal:   34359738367 kB
VmallocUsed:       38908 kB
VmallocChunk:   34359687700 kB
HardwareCorrupted:     0 kB
AnonHugePages:         0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:    15728640 kB
DirectMap2M:           0 kB
BTW, my test used up all the memory again, and free -m show this
             total       used       free     shared    buffers     cached
Mem:         14882      14805         76          0         80      13583
-/+ buffers/cache:       1142      13740
Swap:          488          0        488
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Why does system exec cause a memory leak to occur?

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