On Thu, Jun 8, 2023 at 7:08 PM Hou Tao <houtao@xxxxxxxxxxxxxxx> wrote: > > > (1) non-preallocated + no bpf memory allocator (v6.0.19) > use kmalloc() + call_rcu > > | name | loop (k/s)| average memory (MiB)| peak memory (MiB)| > | -- | -- | -- | -- | > | no_op | 681.40 | 0.87 | 1.00 | > | overwrite | 8.56 | 38.86 | 88.42 | > | batch_add_batch_del| 6.74 | 41.28 | 69.70 | > | add_del_on_diff_cpu| 4.68 | 3.43 | 5.70 | > > (2) preallocated > OPTS=--preallocated > > | name | loop (k/s)| average memory (MiB)| peak memory (MiB)| > | -- | -- | -- | -- | > | no_op | 673.95 | 1.98 | 1.98 | > | overwrite | 114.63 | 1.99 | 1.99 | > | batch_add_batch_del| 78.34 | 2.04 | 2.06 | > | add_del_on_diff_cpu| 6.41 | 2.23 | 2.54 | > > (3) normal bpf memory allocator > > | name | loop (k/s)| average memory (MiB)| peak memory (MiB)| > | -- | -- | -- | -- | > | no_op | 656.20 | 0.99 | 0.99 | > | overwrite | 81.21 | 1.10 | 2.49 | > | batch_add_batch_del| 18.40 | 2.13 | 2.62 | > | add_del_on_diff_cpu| 5.38 | 10.40 | 18.05 | I have a feeling that you didn't remeasure things and just copy pasted above from v4. I see vastly different numbers in v5. and peak memory usage is broken. It always shows: peak memory usage 0.00MiB
