3 ms·

We tried mimalloc in ClickHouse and it is two times slower than jemalloc in our common use case https://github.com/microsoft/mimalloc/issues/11 https://github.c

We tried mimalloc in ClickHouse and it is two times slower than jemalloc in our common use case https://github.com/microsoft/mimalloc/issues/11 https://github.com/microsoft/mimalloc/issues/11

MaxBarraclough 7y ago
To be clear, your program ran at half speed, right? That's far worse than doubling the time spent in memory-management functions.
- danlark 7y ago
  Yes, our program ran at half speed.
- vinay_ys 7y ago
  It is quite bad if changing the allocator made your program run at half speed. It doesn't matter if the library itself consumed more CPU or caused more wait (guessing that's the case here) due to concurrency or excessive syscalls.
deleted 7y ago
[deleted]
danlark 7y ago
The developer helped us a lot to improve the speed and now it is almost at the same level as jemalloc for us