Legacy ImageMagick Discussions Archive

Hello!
I have test app with two threads. Each thread looks like: I run this app on a 24-core system and expect loading two cores at 100%.
But it doesn't happen. Each of two cores works at 80-90%.
I explored source code and found this call sequence: Image::ping->PingBlob->CloneImageInfo->AcquireImageInfo->AcquireMagickMemory
There is a special memory manager with blocking (memory_semaphore), so I can't use full power of cores.
Am I right?
Is there any way to have memory manager for each thread?
Or may be other solution?

IM 6.7.6.9
CentOs 6.3

No idea? Nobody knows?

ImageMagick uses the standard memory methods, malloc(), free(), etc. You can use any memory manager you want. Just call MagickCore::SetMagickMemoryMethods() with three methods with the same signature as malloc(), realloc(), and free().

"Our custom memory allocation manager implements a best-fit allocation policy using segregated free lists..."

This manager uses semaphores.
How can I make ImageMagick to use pure malloc/free without special policies and blocks?

Our custom memory allocation manager does implement a best-fit allocation policy. However, it only used if you use this configure script option: --enable-zero-configuration. Its likely you did not use this option, therefore ImageMagick is using the standard malloc(), realloc(), and free() memory methods.