202207 Release

Change notes:

• pcm-raw: add json output to pcm-raw
• pcm-memory: fix csv output inconsistency for channels without traffic
• fix automatic version generation on checkout
• use GNUInstallDirs for install paths
• pcm-iio: optionally display root port pci device id
• automatically increase limit on open files on Linux
• pcm-daemon: add 'memory mode hit approximation' metric + client sample app fixes
• pcm-daemon: document all pcm-daemon metrics in the common.h header
• handle non-Unicode build configurations on Windows
• add CPU model number in processor information list
• correct hardcoded QPI strings and change to UPI when applicable
• pcm-iio: add missing header item
• check legacy .x files and uninstall them if any found
• pcm-raw: fix "EDP" format prints for offlined cores
• move simdjson wrapper logic to cmake

202205 Release

Change notes:

• PCM_KEEP_NMI_WATCHDOG=1 env variable to keep NMI watchdog running
• support pcm-iio on ICX-D
• compile with up-to-date pre-installed simdjson library if available (e.g. on ubuntu 22.04)
• support additional Alderlake cpu model
• document -pid option in pcm-numa and pcm-tsx

202203 Release

Change notes:

• add experimental pcm csv data plot and background collection scripts
• print 4 digits for MPI metrics
• uncore linux perf event robustness enhancements
• pcm-raw: additional overhead reduction for multi-group collection
• general overhead reduction (skip restoring thread affinity when not required)
• enhanced README for grafana setup
• pcm-numa, pcm-tsx: add -pid option
• fix compilation of examples on old gcc
• fix: restore affinity for caller process
• fixed race condition in resctrl (when not available)

202202 Release

Change notes:

• cmake install section update
• copy service files to bin folder on Windows
• cpack support (rpm/deb/txz) for Debian and Redhat/SUSE families
• pcm/pcm-raw: add collection of core events for process ID (-pid option) on Linux
• pcm-raw: fixes and upgrades to pcm-raw transposed prints
• pcm-raw: extend tansposed csv printouts
• fix package cstate counters in pcmservice
• pcm-raw: produce self-contained output with CPU meta data (-edp -out options)
• implement no-MSR driver mode (=Linux perf_event only mode)
• pcm-raw: support custom MSR_EVENTs
• silent mode for libPCM.so, non-Debug options
• cmake: respect external LDFLAGS/CXXFLAGS/CFLAGS env variables

202201 Release

Change notes:

• use cmake to build the project
• reduce pcm overhead on Linux/Windows
• pcm-raw: add -r option (PMU reset)
• pcm-raw: add a sample separator option
• freeze/unfreeze all core PMU counters during the read operation
• change ulimit recommendations
• various performance and bug fixes

202112 Release

Change log:

• pcm: expose DRAM_GT_REQUESTS and DRAM_IA_REQUESTS bandwdith metrics
• pcm: added client IO and GT bandwidth metrics to CSV output
• pcm-service (windows): added additional C-state statistics
• pcm-memory: added -u option (clear screen before stat update)
• pcm-memory: added -s option (silent mode)
• pcm-memory: add csv print support for DRAM rank monitoring
• pcm-memory: disable pmem output when rank monitoring is enabled
• pcm-power: support for <1 sec delay
• pcm-raw: support event files in tsv format
• pcm-raw: added -i option (limits the number of iterations/samples)
• pcm-raw: add support of IRP events
• pcm-raw: add thousand separator and tab separator options
• pcm-pcie: support 8 socket platforms
• pcm-power: add core power license statistics
• various small fixes and enhancements

202110 Release

Change notes:

• support ADL (Alder Lake) in pcm tool
• pcm-raw: support name lookup and programming of offcore response, frontend and load latency core events that require additional MSR setup
• pcm-raw: support other directories for event files
• display average uncore frequency in pcm.x
• allow verbose CPU topology printing with PCM_PRINT_TOPOLOGY environment variables
• implement pmu reservation on Windows
• support compilation on VS2017
• various bug fixes

202109 Release

Change notes:

• pcm-raw: support collecting events by names from event lists (https://download.01.org/perfmon/). Details: link
• pcm-raw: support event group multiplexing
• pcm-iio: support csv output
• Extended Windows PCM driver to support all ICX uncore performance monitoring units
• Developed a workaround to make PCM work in VMware guest

202107 Release

Change notes:

• support systems with > 1024 logical cores
• support Rocket Lake (#298)
• pcm-pcie: fix HIT metrics calculation on Broadwell/Haswell server platforms (#306)
• pcm: add several additional columns to the socket and core sections in csv output
• pcm-iio: fix multiplier value for outbound events on Snowridge and Icelake server platforms
• implement workaround for Linux watchdog not clearing its event programming
• move Icelake top-down events to a separate group to fix counting through Linux perf API
• add pcm-mmio utility to rpm

202105 Release

Change notes:

• support Intel Atom Processor P5900 Series (previously codenamed SnowRidge)
• address Linux warnings