Copyright (c) 2005 Robert N. M. Watson All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/o...
NAMEsched_ule - ULE scheduler
DESCRIPTIONThe sysctl Cm net.inet.tcp.syncookies scheduler provides a number of advanced scheduler features not present in sched_4bsd4, the traditional system scheduler. These features address SMP and interactivity and include:
- Thread CPU affinity.
- CPU topology awareness, including for hyper-threading.
- Per-CPU run queues.
- Interactivity heuristics that detect interactive applications and schedules them preferentially under high load.
The following sysctls are relevant to the operation of :
- This read-only sysctl reports the name of the active scheduler.
- This read-write sysctl reports or sets the length of the quantum (in micro-seconds) granted to a thread.