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This release contains many speed and space optimizations, from micro optimizations on common paths to rework of internal data structures and locking schemes, and many more too detailed to list below. Multiple percent of system level metric improvements were measured in tested production workloads. The release has gone through large-scale production testing.
New features: -...
This release is primarily about Windows. A critical virtual memory leak is resolved on all Windows platforms. The regression was present in all releases since 5.0.0.
Bug fixes:
posix_memalign(). This re...This release includes a few notable improvements, which are summarized below: 1) improved fast-path performance from the optimizations by @djwatson; 2) reduced virtual memory fragmentation and metadata usage; and 3) bug fixes on setting the number of background threads. In addition, peak / spike memory usage is improved with certain allocation patterns. As usual, the release and prior dev versio...
This release is primarily about fine-tuning, ranging from several new features to numerous notable performance and portability enhancements. The release and prior dev versions have been running in multiple large scale applications for months, and the cumulative improvements are substantial in many cases.
Given the long and successful production runs, this release is likely a good candidate for...
This bugfix release fixes several issues, most of which are obscure enough that typical applications are not impacted.
Bug fixes:
decay->nunpurged before purging, in order to avoid potential update races and subsequent incorrect purging volume. (@interwq)dlsym(3) error if the failure impacts an enabled feature (lazy locking and/or background threads). T...