Serializer is not using 100% CPU

Currently I'm running a few simple serialization tests. A few thousand objects are serilaized and deserialized within a loop. I noticed that this test is not using 100% cpu. Could anyone explain why?

UPDATE

I'm serializing into memory, and serial开发者_开发技巧ization is singlethreaded. I'm using standard .NET binary serialization and protobuf-net to compare.

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IO Operations make the thread running the serialization to block.
While it is blocked, other processes might get CPU time.

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Have you got a multi-core processor? Because, if so, serialization will only use one of the cores because it's a single threaded process.

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Perhaps you have a multicore CPU and the serialization code is single-threaded?

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• Multi core / thread CPU?
• Memory speed overhead?
• Disk speed overhead?

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CPU's are faster as:

• Disk (even SSD)
• Network
• RAM / Memory

If you are allocating thousands of objects, you might be waiting for some page-faults.

If you are doing a de-serialization multithreaded, there might be some locking issues.