Did you see more mbuf alloc failures in between these calls?
-adrian On Fri, 25 Apr 2025 at 15:37, Nuno Teixeira <edua...@freebsd.org> wrote: > Before iperf3: > > netstat -mb > 27/8103/8130 mbufs in use (current/cache/total) > 1/5333/5334/1009905 mbuf clusters in use (current/cache/total/max) > 0/4318 mbuf+clusters out of packet secondary zone in use (current/cache) > 0/3810/3810/504952 4k (page size) jumbo clusters in use > (current/cache/total/max) > 0/0/0/149615 9k jumbo clusters in use (current/cache/total/max) > 0/0/0/84158 16k jumbo clusters in use (current/cache/total/max) > 9K/27931K/27940K bytes allocated to network (current/cache/total) > 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) > 0/0/0 requests for mbufs delayed (mbufs/clusters/mbuf+clusters) > 0/0/0 requests for jumbo clusters delayed (4k/9k/16k) > 0/0/0 requests for jumbo clusters denied (4k/9k/16k) > 0 sendfile syscalls > 0 sendfile syscalls completed without I/O request > 0 requests for I/O initiated by sendfile > 0 pages read by sendfile as part of a request > 0 pages were valid at time of a sendfile request > 0 pages were valid and substituted to bogus page > 0 pages were requested for read ahead by applications > 0 pages were read ahead by sendfile > 0 times sendfile encountered an already busy page > 0 requests for sfbufs denied > 0 requests for sfbufs delayed > > After iperf3 (trigger) > > % netstat -mb > 26/8104/8130 mbufs in use (current/cache/total) > 1/5333/5334/1009905 mbuf clusters in use (current/cache/total/max) > 0/4318 mbuf+clusters out of packet secondary zone in use (current/cache) > 0/3810/3810/504952 4k (page size) jumbo clusters in use > (current/cache/total/max) > 0/0/0/149615 9k jumbo clusters in use (current/cache/total/max) > 0/0/0/84158 16k jumbo clusters in use (current/cache/total/max) > 8K/27932K/27940K bytes allocated to network (current/cache/total) > 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) > 0/0/0 requests for mbufs delayed (mbufs/clusters/mbuf+clusters) > 0/0/0 requests for jumbo clusters delayed (4k/9k/16k) > 0/0/0 requests for jumbo clusters denied (4k/9k/16k) > 0 sendfile syscalls > 0 sendfile syscalls completed without I/O request > 0 requests for I/O initiated by sendfile > 0 pages read by sendfile as part of a request > 0 pages were valid at time of a sendfile request > 0 pages were valid and substituted to bogus page > 0 pages were requested for read ahead by applications > 0 pages were read ahead by sendfile > 0 times sendfile encountered an already busy page > 0 requests for sfbufs denied > 0 requests for sfbufs delayed > > Adrian Chadd <adrian.ch...@gmail.com> escreveu (sexta, 25/04/2025 à(s) > 23:33): > > > > there's nothing odd in the stats output. > > > > Try netstat -mb before and after. This error really feels like it's > somewhere else in the kernel. > > > > > > > > -adrian > > > > > -- > Nuno Teixeira > FreeBSD UNIX: <edua...@freebsd.org> Web: https://FreeBSD.org >
