update docs

Author: struct

PERFORMANCE.md

@@ -205,7 +205,7 @@ realloc/free 1441616 tests completed in 0.597936 seconds
 
 ```
 
-The following benchmarks were collected from [mimalloc-bench](https://github.com/daanx/mimalloc-bench) with the default configuration of IsoAlloc. As you can see from the data IsoAlloc is competitive with jemalloc, tcmalloc, and glibc/ptmalloc for some benchmarks but clearly falls behind in the Redis benchmark. For any benchmark that IsoAlloc scores poorly on I was able to tweak its build to improve the CPU time and memory consumption. It's worth noting that IsoAlloc was able to stay competitive even with performing many security checks not present in other allocators.
+The following benchmarks were collected from [mimalloc-bench](https://github.com/daanx/mimalloc-bench) with the default configuration of IsoAlloc. As you can see from the data IsoAlloc is competitive with jemalloc, tcmalloc, and glibc/ptmalloc for some benchmarks but clearly falls behind in the Redis benchmark. For any benchmark that IsoAlloc scores poorly on I was able to tweak its build to improve the CPU time and memory consumption. It's worth noting that IsoAlloc was able to stay competitive even with performing many security checks not present in other allocators. Please note these are 'best case' measurements, not averages.
 
 ```
 # benchmark allocator elapsed rss user sys page-faults page-reclaims
@@ -236,7 +236,7 @@ redis       mimalloc    4.487 29204 2.07 0.20 0 6825
 redis       smimalloc   4.909 30992 2.28 0.20 0 7410
 redis       tcmalloc    4.675 37336 2.17 0.20 0 8682
 redis       scudo       6.105 36968 2.85 0.23 0 8623
-redis       isoalloc    8.658 62088 4.06 0.32 0 18099
+redis       iso         7.967 105332 3.48 0.54 0 112953
 
 cache-thrash1 jemalloc    01.28 3648 1.27 0.00 1 240
 cache-thrash1 mimalloc    01.28 3408 1.28 0.00 0 197