Re: [PATCH v3 bpf-next/net 5/5] selftest: bpf: Add test for SK_BPF_MEMCG_SOCK_ISOLATED.

On 8/26/25 11:38 AM, Kuniyuki Iwashima wrote:

The test does the following for IPv4/IPv6 x TCP/UDP sockets
with/without BPF prog.

   1. Create socket pairs
   2. Send a bunch of data that require more than 1000 pages
   3. Read memory_allocated from the 3rd column in /proc/net/protocols
   4. Check if unread data is charged to memory_allocated

If BPF prog is attached, memory_allocated should not be changed,
but we allow a small error (up to 10 pages) in case the test is ran
concurrently with other tests using TCP/UDP sockets.

hmm... there is a "./test_progs -j" that multiple tests can run in parallel. 
Will it be reliable enough or it needs the "serial_" prefix in the test 
function? Beside, the test took ~20s in my qemu. Is it feasible to shorten the test?