Post AW7E3pb9E13lph5XP6 by eqe@aleph.land
 (DIR) More posts by eqe@aleph.land
 (DIR) Post #AW7ANen2iffuHqqmLg by niconiconi@mk.absturztau.be
       2023-05-28T13:09:16.986Z
       
       1 likes, 0 repeats
       
       How to drop Linux kernel cache/buffer on a server you don't own for a controlled test... Just allocate and write garbage to a huge region of memory. ​:woozy_baa:​ Apparently a common One Weird Trick in HPC.
       
 (DIR) Post #AW7E3ohUYwXZ3535ea by eqe@aleph.land
       2023-05-28T13:49:28Z
       
       0 likes, 0 repeats
       
       @niconiconi yesss hpc were doing that before drop_cache API was added
       
 (DIR) Post #AW7E3pb9E13lph5XP6 by eqe@aleph.land
       2023-05-28T13:50:18Z
       
       1 likes, 1 repeats
       
       @niconiconi you only need to write one byte per 4k page, save yourself the front side bus throughput of a memset