Hopefully I ask this right... but then it is about threading.
We have an older version (9.08) of the Ghostscript dll that was compiled with the thread safe flag. Without it, all my tests up to version 9.20 have shown that of 10 simultaneous threads, about 4 tend to fail to convert PDF to PostScript.
One of our developers has wrapped version 9.51 (64 bit... cool) in a mutex semaphore. Now if I understand correctly, that would make it thread safe, but only by making sure that only one document was processed by the dll at a time so processing would be sequential, not parallel. Is that correct?
What I have tried:
I have a test harness, so I guess I could do a performance test on it.