EF_STACK_LOCK_BUZZ - UG1586

Onload User Guide (UG1586)

Document ID
UG1586
Release Date
2025-11-03
Revision
1.31 English
Name
stack_lock_buzz
Default
0
Minimum
0
Maximum
1
Scope
per-process

Spin while waiting to obtain a per-stack lock. If the spin timeout expires, enter the kernel and block. The spin timeout is set by EF_BUZZ_USEC.

This option reduces jitter caused by lock contention, but can reduce fairness between threads competing for the lock.