Hi, I'm trying to understand how the shared memory pool works inside the Nginx. To do that, I made a very small module which create a shared memory zone with 2097152 bytes, and allocating and freeing blocks of memory, starting from 0 and increasing by 1kb until the allocation fails.
The strange parts to me were: - the maximum block I could allocate was 128000 bytes - each time the allocation fails, I started again from 0, but the maximum allocated block changed with the following profile 128000 87040 70656 62464 58368 54272 50176 46080 41984 37888 33792 29696 This is the expected behavior? Can anyone help me explaining how shared memory works? I have another module which do an intensive shared memory usage, and understanding this can help me improve it solving some "no memory" messages. I put the code in attach. Thanks, Wandenberg
nginx-shm-fragmentation-module.tar.gz
Description: GNU Zip compressed data
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