Hiya, Something thats been on the radar for a while but noone's actually done is to modify the memory allocator to return non-zero'ed buffers where appropriate.
I've written a patch which adds a couple of calls to the memory allocator and mempool allocator in squid-2.6 which doesn't zero the string and mem_node buffers. There are possibly a few other buffers which could do with not being zero'ed (eg the 1k/2k/4k/8k general-use buffers, the aio data buffers, etc.) http://www.creative.net.au/diffs/20060922-squid26-nozerobufs.txt This obviously can't be extended to too many allocations as a lot of the code assumes pre-zero'ed data for things like structure initialisation, etc. I'd like some feedback - both on how I've written it and whether it gives any noticeable performance differences in real-world workloads. I'm aiming to put something similar into Squid-3. Adrian
