The glibc Cache - The Unsorted Bin | DEEP LINUX

This is the third video from the heap series which talks about glibc's internal caching mechanism applied to freed blocks. Maintained as a heirarchy of so called bins, the glibc cache plays an important role in its performance. In particular I will talk in detail about the unsorted bin.
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[@FakAr6]

Hello, thank you for this series, I really love it.
Though there is one thing I don't understand in this video. After freeing b1(at 15:07), why did the head of the unsorted bin change to b1 ? I was expecting main_arena.bins[0].fd/bk to point to b1 and b1.fd/bk to point to main_arena.bins[0], as shown in the Azeria-Labs illustration.

[@maximood-tired]

great video, however i think your mic is broken, its quite hard to understand

[@deeplinux2248]

Yes unfortunately the audio on a couple of my videos got bad and I realized after the fact but was too lazy to do a re-recording.