On 11/5/19 11:36 AM, Jan Hubicka wrote:
Hi, this patch adds object allocators to manage IPA summaries. This reduces malloc overhead and fragmentation. I now get peak memory use 7.5GB instead of 10GB for firefox WPA because reduced fragmentation leads to less COWs after forks.
That sounds promising.
Additional bonus is that we now have statistics gathered by mem-reports which makes my life easier, too.
What's currently bad with the detailed memory statistics? I updated the code that one should see the allocation for the underlying hash_map and vec?
(though memory stats are far from ideal - we need to pass location info around bit more).
Please rename allocator to m_allocator. Martin
