diff --git a/documentation/RELEASE_NOTES.html b/documentation/RELEASE_NOTES.html index 3db8233c0..fbbc645de 100644 --- a/documentation/RELEASE_NOTES.html +++ b/documentation/RELEASE_NOTES.html @@ -7,7 +7,7 @@ -

EPICS Base Release 3.15.0.1

+

EPICS Base Release 3.15.0.2

EPICS Base 3.15.0.x releases are not intended for use in production systems.

@@ -15,6 +15,23 @@ EPICS Base 3.15.0.x releases are not intended for use in production systems.

Changes between 3.15.0.1 and 3.15.0.2

+

Parallel callback threads

+ +

The general purpose callback facility can run multiple parallel callback +threads per priority level. This makes better use of SMP architectures (e.g. +processors with multiple cores), as callback work - which includes second +stage processing of records with asynchronuous device support and I/O +scanned processing - can be distributed over the available CPUs.

+ +

Note that by using parallel callback threads the order of scan callback +requests in the queue is not retained. If a device support needs to be +informed when scanIoRequest processing has finished, it should use the new +scanIoSetComplete() feature to add a user function that will be called after +the scanIoRequest record processing has finished.

+ +

Parallel callback threads have to be explicitly configured, by default +the IOC keeps the old behavior of running one callback thread per priority.

+

Implement EPICS_CAS_INTF_ADDR_LIST in rsrv

The IOC server can now bind to a single IP address (and optional port number) @@ -31,8 +48,7 @@ backwards compatibility reasons. Only the alarm.h header needs to be included now to declare the epicsAlarmSeverityStrings and epicsAlarmConditionStrings arrays.

-

-General purpose thread pool

+

General purpose thread pool

A general purpose threaded work queue API epicsThreadPool is added.