CHANGELOG.md

Changelog

Changelog practices: Keep a Changelog. Versioning practices: Semantic Versioning.

[ADD NEW VERSION HERE] - ADD DATE HERE

Fixed

Added

Removed

Changed

[1.12.27] - 2024-09-17

Fixed

• Fix running commands on remote host, e.g. 'ndl scan -H '.

[1.12.26] - 2024-09-16

Fixed

• Fix 'wult deploy' failing to deploy 'wult-freq-helper'.

[1.12.25] - 2024-08-29

Added

• Add 'wult deploy --skip-bpf' option for skipping eBPF helpers deployment.

Changed

• Rename the "Wake Period" metric to "Launch Distance". This change includes renaming the '--wakeperiod (-w)' and '--wakeperiod-step' options to '--ldist (-l)' and '--ldist-step' accordingly. Note that the tool maintains compatability with results collected on older versions of the tool, however reports generated will represent data collected as "Wake Period" data as "Launch Distance" data.

[1.12.24] - 2024-08-16

Fixed

• Fix 'ndl' tool failure on system where 'sch_etf' and 'sch_mqprio' kernel modules are not loaded.
• Fix 'wult' tool missing the CC7 C-state counter on some client CPUs.

Added

• Add 'exercise-sut start --skip-io-dies' option support.
• Add C10 support for exercise-sut '--use-cstate-filters' option.

[1.12.23] - 2024-07-24

Fixed

• Fix 'exercise-sut start --use-cstate-filters' failures on platforms that do not have C1 counter and use 'DerivedCC1%' instead.
• Fix 'pbe report' crash when one of the raw results has no statistics whatsoever.

[1.12.22] - 2024-07-12

Fixed

• Fix 'pbe deploy' driver compilation issue with kernels older than v6.6.

Added

• Add the '--stats' option to the 'pbe' tool so that users can customise which statistics are collected during 'pbe' data collection.
• Add the '--stats-intervals' option to the 'pbe' tool so that users can customise the statistics intervals which are used during 'pbe' data collection.
• Add the '--list-stats' option to the 'pbe' tool so that users can see which statistics are available and can be specified with the '--stats' options.

[1.12.21] - 2024-06-19

Added

• Include report generaltion logs to pbe reports.
• New 'pbe start --lead-cpu' option.

[1.12.20] - 2024-06-05

Added

• New wult/ndl deploy '--drivers-make-opts' option. Can be used to customize the drivers build options, like adding 'CC=clang'.
• New 'pbe' tool. Can be used to find the power break-even points of C-states on a system.

[1.12.19] - 2024-04-25

Changed

• Split manual pages and simplify the '--help' output.
• Require stats-collect v1.0.24 - there was a critival fix in turbostat statistics visualization code.

[1.12.18] - 2024-03-08

Changed

• No functional changes since 1.12.17, just updates to changed pepc project APIs.

[1.12.17] - 2024-02-21

Fixed

• Fix 'wult deploy' crash, regression since v1.12.16.

Changed

• Rename 'freq-helper' to 'wult-freq-helper'.

[1.12.16] - 2024-02-16

Fixed

• Fix 'freq-noise' helper deployment failure on some systems.

[1.12.15] - 2024-02-09

Fixed

• Fix 'exercise-sut start --list-monikers' crashing.

Added

• Add a link to report generation logs in HTML reports.
• Add new wult/ndl "start" option support: '--freq-noise'.
• Add '--use-cstate-filters' option to exercise-sut tool to filter datapoints with wult and ndl tools.

[1.12.14] - 2023-11-24

Fixed

• Fix MC6 counter collection in the 'hrt' and 'tdt' drivers. It was collecting CC6 instead.

Changed

• The 'exercise-sut' tool now supports the '--stats' option for the standard workloads: wult, stats-collect, ndl.

[1.12.13] - 2023-10-25

Changed

• Minor adjustment to match new 'pepc' API. No functional changes.

[1.12.12] - 2023-10-18

Fixed

• Fix 'wult scan' and 'ndl scan' - they sometimes did not show all the compatible PCIe devices.

[1.12.11] - 2023-10-04

Fixed

• Add partial workaround for kernel tracing sub-system regression by using per-cpu 'trace_pipe' sysfs file instead of using the global one.
• Detect buggy kernels and print a helpful error messages suggesting to update the kernel to the latest stable version.

[1.12.10] - 2023-09-08

Fixed

• Fix 'wult/ndl' not generating statistics tabs in HTML reports for some results with format version '1.2'.
• Fix failure when NIC is specified by MAC address.
• Fix exercise-sut skipping valid configurations.
• Fix ndl driver build for older kernels (~linux 5.15).

Added

• ndl start: support 'local' and 'remote' values for the '--cpunum' option.
• ndl start: add '--trash-cpu-cache' option, helps ensuring NIC reads from memory, and not from a CPU cache.

Changed

• Improve exercise-sut package C-state handling.
• Accept '--state-reset' option alone for 'exercise-sut start' command.

[1.12.9] - 2023-08-18

Fixed

• Fix 'exercise-sut' crashing with pepc version '1.4.32'.

[1.12.8] - 2023-08-16

Fixed

• Fix 'wult/ndl report' crashing for results with format version '1.2'.

Changed

• Increment the format version of 'wult/ndl' results to '1.3'.

[1.12.7] - 2023-08-14

Changed

• ndl: disable DMA coalescing to avoid potential latency spikes
• Change the way that 'wult' and 'ndl' HTML reports are generated so that tabs will be included if any result contains data for them rather than only being included if all results have relevant data.

[1.12.6] - 2023-07-31

Added

• Add 'stats-collect' logs to HTML reports.
• Add the version of 'wult/ndl' to HTML reports to indicate which version was used to generate the report.

[1.12.5] - 2023-07-14

Changed

• Disable self-tests in debian packaging for now.

[1.12.4] - 2023-07-14

Fixed

• Workaround for a failure enabling 'bpf_trace_printk'.

[1.12.3] - 2023-06-28

Changed

• Improve 'wult' and 'exercise-sut' console output.

[1.12.2] - 2023-06-16

Added

• Add report generation log to 'wult' and 'ndl' report directories.

Changed

• Get rid of TSC calibration logic in the 'tdt_bpf' method. Instead, use kprobes to retreive absolute TSC value from the kernel.

[1.12.1] - 2023-06-12

Changed

• Move 'stats-collect' to a separate git repository.

[1.11.22] - 2023-06-07

Fixed

• Fix SVOS distro compilation issues.

[1.11.21] - 2023-06-07

Fixed

• Fix turbostat tabs failing to generate because of two or more results do not have enough turbostat metrics in common.

Added

• Add 'stats-collect report --reportids' option.
• Add 'pepc power info' output to 'pepc SysInfo' tabs in HTML reports.

Changed

• Changed 'wult' and 'stats-collect' to skip generating SysInfo diffs if the files are identical to speed up report generation.
• Changed the default value of 'stats-collect start --cpunum' to 'None'.

[1.11.20] - 2023-05-30

Fixed

• Fix a regression introduced in v1.11.19, which caused 'stats-collect start --report' to crash.
• Fix 'stats-collect start --stats=none' crashing. Regression introduced in v1.11.11.
• Fix 'wult' report generation crashing if no statistics were collected. Regression introduced in v1.11.19.

[1.11.19] - 2023-05-26

Fixed

• Fix stats-collect diffs only showing one result in 'Captured Output' tabs and intro tables when two results have the same report ID.
• Fix 'Measured CPU' tab generation crashing when the measured CPU of a result is not 0.
• Fix '--stats=ipmi' not resolving to 'ipmi-inband' and 'ipmi-oob' properly.
• Fix '--stats=ipmi-inband' or '--stats=ipmi-oob' sometimes resulting in the other 'ipmi' collection method being used.

Added

• Add alerts to 'Captured Output' tabs and modify output files to make it clear to users when files have been trimmed.
• Add 'duration' to 'stats-collect' HTML report intro tables.

Removed

• Remove 'wult start --early-intr' option.

Changed

• Minor design improvements to HTML report tabs with alerts and file-previews.

[1.11.18] - 2023-05-17

Changed

• exercise-sut: change default behavior: when '--cstates' is not specify, assume "no C-states testing" instead of previous "test all C-state".

[1.11.17] - 2023-05-12

Changed

• Install manual pages when using 'pip install'.
• Improve 'hrt_bpf' and 'hrt_tdt' methods by using absolute hrtimers available in Linux kernel starting with version 6.4.

[1.11.16] - 2023-05-09

Fixed

• Fix a bug where 'Captured Output' tabs do not load in 'stats-collect' reports. This bug was introduced in v1.11.15.
• Fix a bug where 'sysinfo' tabs in HTML reports do not generate diffs. This bug was introduced in v1.11.9.

[1.11.15] - 2023-05-03

Fixed

• Fix 'sysinfo' tabs not loading in HTML reports when viewed locally.

[1.11.14] - 2023-04-28

Fixed

• Get rid of incorrect 'WakeLatency' datapoints when measuring the 'POLL' state (hrt_bpf and tdt_bpf methods only).
• Statistics collectores deployment fixes.

[1.11.13] - 2023-04-27

Fixed

• Fix incorrect 'wult calc' warning about non-numeric metrics.
• Fix regression in 'stc-agent' introduced in version 1.11.12.

[1.11.12] - 2023-04-27

Fixed

• Fix 'stats-collect report' generating broken diffs when given results with duplicate report IDs.

Changed

• Teach the 'exercise-sut' tool display 'wult' progress bar.

[1.11.11] - 2023-04-17

Added

• Allow empty moniker when generating reports with exercise-sut. Depends on pepc version 1.4.9.
• Fix Debian build dependency for pytests to run in build environment.

[1.11.10] - 2023-04-05

Fixed

• Fix kernel error messages like "already have device 'wult_tdt' registered" by prohibiting wult out of tree drivers to be automatically loaded.

[1.11.9] - 2023-04-03

Fixed

• Fix HTML reports not being able to be viewed locally since v1.11.2.

[1.11.8] - 2023-03-30

Fixed

• Fix 'stats-collect' deployment.

[1.11.7] - 2023-03-24

Fixed

• Fix several metrics missing 'min/max' summary functions in 'wult' HTML reports.

[1.11.6] - 2023-03-24

Fixed

• Fix AC Power plot generation failing because of 'inf' values in raw AC Power statistic files.
• Fix 'stats-collect report' crashing on on raw acpower statistic files with bad headers.

Added

• Add 'tool information' and 'collection date' to 'stats-collect' report intro tables.

[1.11.5] - 2023-03-16

Fixed

• Fix 'stats-collect report' crashing on 'inf' acpower values.

Changed

• Change 'stats-collect', 'wult' and 'ndl' to collect 'turbostat' and 'sysinfo' statistics by default.

[1.11.4] - 2023-03-10

Added

• Add command used in 'stats-collect start' to 'stats-collect' reports.

[1.11.3] - 2023-03-03

Fixed

• Fix a regression in v1.11.2 where 'sysinfo' tabs would fail to generate diffs.

[1.11.2] - 2023-03-03

Added

• Add '--cpunum' option for ndl.

[1.11.1] - 2023-02-24

Fixed

• Fix pepc dependency, allow for pepc versions greater than 1.3.x.

[1.11.0] - 2023-02-21

Fixed

• Fix 'hrt' method failing on AMD systems.

Added

• Add module C-state support to turbostat collection and reporting.
• Add fullscreen view to diagrams in wult HTML reports.
• Add a button to hide report header in wult HTML reports.

[1.10.59] - 2023-02-15

Changed

• Improve 'tdt' method to be more accurate.
• Improve 'tdt' method to also work for 'POLL' state.

[1.10.58] - 2023-02-13

Added

• Add basic module C-states support.

[1.10.57] - 2023-02-10

Fixed

• Fix 'wult report' crashing when generating diffs where the first result contains different metrics to the rest.
• Fix 'wult report' crashing when custom axes are provided which result in empty tabs.

Added

• Add 'pepc topology info' output to 'sysinfo' statistics collection.
• Add 'pepc topology info' output to 'sysinfo pepc' tab in wult reports.

Changed

• Moved the 'Busy%' turbostat tab from 'Misc' to 'C-states,Hardware' in wult reports.

[1.10.56] - 2023-02-02

Changed

• Renamed the 'stats-collect-components' JavaScript package to '@intc/stats-collect'.

[1.10.55] - 2023-02-02

Fixed

• Fix 'ndl deploy --tmpdir-path' option.
• Fix 'ndl start' command.
• Do not crash if the 'systemctl' tool is not available.

[1.10.54] - 2023-01-13

Fixed

• Fix reports generated with 'stats-collect start --report' having no title.
• Fix 'stats-collect' not maintaining reportid between 'start' and 'report' commands.

Changed

• Reports generated with 'stats-collect start --report' will now appear in an 'html-report' sub-directory if no output directory is specified.

[1.10.53] - 2023-01-12

Fixed

• Fix 'wult deploy' crashing (regression in release 1.10.51).

[1.10.52] - 2023-01-12

Fixed

• Fix report generation crashing when a summary table contains more than one 'N/A' value.
• Fix 'ndl' manual pages: we mistakingly documented 'wult' tool in 'ndl' man page.

Changed

• Update 'npm' packages used in wult HTML reports.
• Generate tabs in wult HTML reports even when one or more results will be excluded.

[1.10.51] - 2023-01-09

Fixed

• Fix turbostat totals tabs being unopenable in wult HTML reports.

Added

• Add statistics collection support to the 'ndl' tool ('--stats' and '--stats-intervals' options).
• Add 'stats-collect' tool. It is not very useful yet, but it will get more functionality later.
• Add warnings to wult HTML reports when a diagram has been skipped because all results contain a single value for a given metric.

[1.10.50] - 2022-12-23

Fixed

• Fix 'wult report' crashing when used on a dataset with very few datapoints.
• Fix the 'wult start --no-unload' debugging option.

Changed

• Improve 'IntrLatency' accuracy for 'hrt' and 'tdt' methods'.

[1.10.49] - 2022-12-19

Fixed

• Fix strange units on the axis of diagrams with 'CPUFreq' data in wult reports.
• Fix regression which caused 'wult deploy' to error when '-H' option was not used.

[1.10.48] - 2022-12-16

Changed

• Adjust to 'pepc' project changes again (no functional changes).

[1.10.47] - 2022-12-16

Changed

• Adjust to 'pepc' project changes (no functional changes).

[1.10.46] - 2022-12-16

Fixed

• Fix some statistics being collected for longer than others when 'SysInfo' statistics are also collected.

[1.10.45] - 2022-12-14

Fixed

• Fix 'CC0%' calculations in the 'tdt_bpf' method.

[1.10.44] - 2022-12-10

Added

• Add new 'tdt_bpf' method.

Changed

• Fix SVOS debianization (missed dependency added).

[1.10.43] - 2022-12-09

Changed

• Stop NTP service when measuring.

[1.10.42] - 2022-12-09

Changed

• Rename the 'hrt-bpf' method to 'hrt_bpf'.
• Improve precision of the 'hrt' method.

[1.10.41] - 2022-12-02

Added

• Add CPU frequency metric, which now appears as "CPUFreq" in hover text of scatter plots.

[1.10.40] - 2022-11-24

Fixed

• Fix 'ndl deploy' command failure.
• Fix 'wult report' failing if a metric in a summary table contains all zeros.

[1.10.39] - 2022-11-23

Added

• Add "POLL requested %" turbostat tabs to reports.

Changed

• The eBPF-based 'hrtimer' method was renamed to 'hrt-bpf'.
• Fixed and renamed '--title-descr' option to '--report-descr'.

[1.10.38] - 2022-11-07

Fixed

• Fix 'wult start' failing without specifying '--stats none'. This is a regression introduced in 1.10.35.

[1.10.37] - 2022-11-02

Fixed

• Fix '--stats all' so that it also collects the "sysinfo" data. This is a regression introduced in version 1.10.34.
• Fix '--stats acpower' - it failed, due to a regression in version 1.10.34.

[1.10.36] - 2022-10-31

Changed

• Debianization: include drivers' sources into the package.

[1.10.35] - 2022-10-28

Added

• Add support for sharing URLs to specific tabs in wult reports.

Changed

• Change the wult report layout from nested tabs to use tabs and a tree for navigating sub-tabs.

[1.10.34] - 2022-10-12

Fixed

• Fix the 'ipmi' statistics collection.

[1.10.33] - 2022-09-05

Fixed

• Fix 'hrtimer' method's pre-compiled eBPF program.

[1.10.32] - 2022-09-30

Fixed

• Fix 'hrtimer' method's outliers problem by filtering out datapoints that included unrelated SW interrupts and NMIs.

[1.10.31] - 2022-09-22

Removed

• Do not collect 'journalctl -b' output as part of the 'sysinfo' statistics.

[1.10.30] - 2022-09-20

Removed

• Remove '--headless' option from 'view_multiple_reports.py'.
• Remove 'view_report.py' from report directories.

Changed

• Increase max. launch distance to 50 milliseconds (tdt, hrt, i210).
• Rename 'view_multiple_reports.py' to 'serve_directory.py'.
• Change 'serve_directory.py' so that it does not try to open a web-browser by default.

[1.10.29] - 2022-09-16

Fixed

• Do not check for 'stc-agent' and do not complain about its possible absence if statistics do not need to be collected.
• Do not check for kernel sources and do not complain about them missing when deploying with the '--skip-drivers' option.
• Fix missing package C-state tabs in reports

Added

• Add the ability to upload a wult report directory if viewing the report locally.
• Add 'RAMWatt' tab to wult reports in the turbostat totals power/temperature tab.

Changed

• Improve the warning about viewing wult reports locally.

[1.10.28] - 2022-09-08

Fixed

• Minor fix for the 'i210' method: restore network interface operational state correctly.

Added

• Add '--dir' option to 'view_multiple_reports.py'.

Changed

• Wult report viewing scripts now tries multiple ports before failing.

[1.10.27] - 2022-09-07

Fixed

• Wult mistakenly required the 'ip' tool to be installed, this is fixed now.

Added

• New 'wult scan --all' option to print unsupported devices.

Changed

• 'wult deploy --skip-drivers' does not require kernel sources any longer.
• Merge and simplify the 'SilentTime' and 'LDist' tabs in wult reports.
• 'wult scan' does not print unsupported devices by default.

[1.10.26] - 2022-09-05

Fixed

• Do not error out when CC0 cycles is greater than total cycles. Just warn instead. We observe this with 'POLL' C-state on some platforms.
• Fix for the problem of extremely slow data rate when measuring the 'POLL' state using the 'hrt' method.

Added

• Add '--host', '--port' and '--headless' options to report viewing scripts.

Removed

• Remove the '--size=medium' report option.

[1.10.25] - 2022-08-31

Changed

• Reworked the deployment code to better support RPM packaging.

[1.10.24] - 2022-08-29

Fixed

• Fix regression introduced in 1.10.23: we failed to find helpers when they were not in '$PATH'.

[1.10.23] - 2022-08-29

Changed

• Change 'wult' to not expect driver/helper sources be available - they are not available when installed from an OS package, such as an RPM package.
• Change the way 'wult' tool looks for installed drivers and helpers in order to support RPM packaging.

[1.10.22] - 2022-08-28

Fixed

• Fix C-state tabs being excluded from wult HTML reports generated with '--size=large'.

Added

• Add 'wult deploy --skip-drivers' option, useful for debug and development.

[1.10.21] - 2022-08-22

Fixed

• Fix the problem of progress line for 'tdt': it always printed 0 max. latency.

[1.10.20] - 2022-08-19

Fixed

• Fix wult deploy regression where 'stc-agent' failed to deploy.

Added

• Always deploy eBPF helpers, making the new "hrtimer" method available by default.

[1.10.19] - 2022-08-19

Fixed

• Fix compatibility of wult report viewing scripts for Python 3.5+.
• Fix wult report failing because it can't find scripts for viewing reports.

Changed

• wult now restores i210 network interface state after the measurement.

[1.10.18] - 2022-08-17

Fixed

• Fix nic method-only regression introduced in 1.10.0: 'WarmupDelay' and 'LatchDelay' metrics were not saved in the CSV file.

[1.10.17] - 2022-08-16

Added

• Add local viewing scripts to each wult HTML report.

[1.10.16] - 2022-08-16

Fixed

• Fix occasional crash: KeyError: 'IntrLatencyRaw'.

Added

• Added new 'hrtimer' method, which is based on eBPF and does not require kernel drivers. This method is considered to be experimental for now, and eBPF helpers are not deployed by default. Use 'wult deploy --deploy-bpf' to deploy them.

Removed

• Remove the "hrtimer" alias for the "hrt" method.
• Remove the "tsc-deadline-timer" alias for the "tdt" method.

Changed

[1.10.15] - 2022-08-10

Fixed

• Fix failure when setting large launch distance (>4ms).

Changed

• Max. launch distance changed from 10ms to 20ms.

[1.10.14] - 2022-08-05

Changed

• Move scripts for local reports viewing to 'misc/servedir'.

[1.10.13] - 2022-08-05

Added

• Add turbostat data to the "Info" tab.
• Add misc. scripts for viewing wult reports locally.

[1.10.12] - 2022-08-01

Fixed

• Fix crash related to 'IntrLatency' (regression in v1.10.11).

Changed

• Change 'wult start --list-stats' to not require device id.

[1.10.11] - 2022-07-18

Fixed

• Fix the 'wult start --early-intr' option.
• Fix 'wult report' generating broken HTML reports for reports with no common IPMI metrics.
• Fix HTML report screen tearing which appeared after switching tabs many times.

Added

• Add 'dmesg', 'lspci', 'cpuidle' and 'cpufreq' to the "SysInfo" tabs in HTML reports.
• Add buttons to the "SysInfo" tab to open raw files in a separate tab.

Removed

• Remove the 'wult start --intr-focus' option.

Changed

• Changed 'wult report' so that reports will be generated with logs by default.

[1.10.10] - 2022-07-15

Fixed

• Fix crashes with kernels version 5.18+ on C-states entered with interrupts enabled.
• Remove bogus 'IntrLatency' data when using the 'tdt' method.

Added

• wult report: add "SysInfo" tab with various system info about SUTs.

Changed

• Optimization: spend time calculating TSC rate only in case of the TDT method. Skip this step for the HRT/NIC methods.

[1.10.9] - 2022-07-06

Changed

• Minor improvements required for RPM packaging

[1.10.8] - 2022-06-29

Fixed

• Fix regression in v1.10.7: turbostat statistics collector was crashing.

[1.10.7] - 2022-06-28

Fixed

• Fix regression in v1.10.1: generated scatter plots were too large.

Changed

• Add 'UncMHz' (uncore frequency) turbostat metric support.
• Improve Turbostat metrics description by specifying the aggregation method (whether it is max or average of values for all CPUs).

[1.10.6] - 2022-06-24

Changed

• wult: add package C-states to turbostat statistics.
• wult: add current and voltage to IPMI statistics.
• Add RPM packaging support.

[1.10.5] - 2022-06-09

Changed

• wult: fix crashes on systems that do not have 'python' in PATH.

[1.10.4] - 2022-06-06

Changed

• wult: fix crash with when unknown method is given (regression in 1.10.0).

[1.10.3] - 2022-06-03

Changed

• wult/ndl: rename the '--list-columns' option to '--list-metrics'.
• wult/ndl: rename the '--rsel' option '--include'.
• wult/ndl: rename the '--rfil' option '--exclude'.
• wult/ndl: rename the '--csel' option '--include-metrics'.
• wult/ndl: rename the '--cfil' option '--exclude-metrics'.
• wult: do not check for 'bpftool' and 'clang' dependency unnecessarily.
• ndl: fail gracefully on 'ndl start tdt'.

[1.10.2] - 2022-05-31

Changed

• wult: fix missing C-states residencies (regression in 1.10.0).
• wult report: fix '--size large'.

[1.10.1] - 2022-05-30

Changed

• wult deploy: fix deploying from sources.
• wult start --stats: fix statistics collection when run from sources.
• wult stats: fix standalone stats-collect dependencies.

[1.10.0] - 2022-05-25

Changed

• wult report: removed symbolic links to raw result files.
• wult report: changed '--relocatable' to be a binary option.
• wult report: added turbostat statistics tab.
• wult: removed 'start --dirty-cpu-cache' option/capability.
• wult: removed 'wult load' debug command.
• wult/ndl deploy: fix '--kernel-src' option which did not work.
• wult/ndl deploy: add '--local-build' option.

[1.9.20] - 2022-04-06

Changed

• Fix crash when using 'wult calc --rsel'.

[1.9.19] - 2022-03-22

Changed

• wult report: fix crash introduced in version 1.9.18.

[1.9.18] - 2022-03-18

Changed

• wult report: added AC power and IPMI statistics visualization.

[1.9.17] - 2022-03-11

Changed

• wult: bugfix release: suggest users how to view local HTML reports.

[1.9.16] - 2022-02-15

Changed

• wult: bugfix release: improve TDT driver skipping datapoints error diagnostic.

[1.9.15] - 2022-02-11

Changed

• wult: bugfix release: fix HTML report summary table hover text.

[1.9.14] - 2022-02-11

Changed

• wult: removed 'start --offline' option.
• wult: browsers now load wult HTML reports faster.

[1.9.13] - 2022-02-01

Changed

• wult: bugfix release: fix raw filters on system with older pandas/numexpr.

[1.9.12] - 2022-01-30

Changed

• wult: bugfix release: fix crash when running 'wult report --list-columns'.

[1.9.11] - 2022-02-28

Changed

• wult: bugfix release: fix 'ndl start' not finding the driver.
• wult: bugfix release: fix 'wult scan' not resolving network name.

[1.9.10] - 2021-12-14

Changed

• wult: bugfix release: fix occasional missing 'WakeLatencyRaw' crash.

[1.9.9] - 2021-11-12

Changed

• wult: bugfix release: fixed data rate, requires pepc 1.1.2.

[1.9.8] - 2021-10-08

Changed

• wult: add 'start --dirty-cpu-cache' option/capability.
• wult/ndl: use modules from the 'pepc' project (new dependency).
• wult: calculate TSC rate and improve measurements accuracy.
• wult: this version requres pepc v1.1.1.

[1.9.7] - 2021-09-09

Changed

• wult: add 'start --early-intr' option/capability.
• wult/ndl: add 'report --relocatable=noraw' support.

[1.9.6] - 2021-09-09

Changed

• wult: improve driver error diagnostics.
• wult: stop supporing kernels older than v5.6.
• wult: add 'start --intr-focus' option/capability.
• wult: add 'start --keep-raw-data' option.
• wult: add 'start --offline' option/capability.
• wult: add 'filter --human-readable' option.
• wult/ndl: removed '--post-trigger' option/capability.

[1.9.5] - 2021-07-30

Changed

• wult: many fixes for small, but annoying problems

[1.9.4] - 2021-07-19

Changed

• wult/ndl: speed up measuring remote SUTs.

[1.9.3] - 2021-06-29

Changed

• wult: add new driver: hrtimer.
• wult: add POLL idle state support.
• wult/ndl: add '--keep-filtered' option for start command.
• wult/ndl: remove broken "advanced" options.
• wult: fix 'stats-collect' deployment.

[1.9.2] - 2021-05-28

Changed

• wult: add statistics collection capability.
• wult: include less diagrams into report by default.
• wult: change default launch distance range from 0-8ms to 0-4ms.
• wult: fix false warning about C-state prewake setting.
• wult: add row filter and selector options '--rfilt' and '--rsel'.

[1.9.1] - 2021-04-09

Changed

• wult: fix regression and do not fail with pre-v5.6 kernels.
• wult: fix warnings for old kernels (pre-v5.3).
• wult: improve Icelake-D support.
• wult: fix a failure acception an i210 NIC by its PCI ID.
• wult: fix interrupt latency figures.

[1.9.0] - 2021-03-25

Changed

• wult: add new 'CStates%' metric for combined C-state residency.
• wult: print helpful message about settings possibly affecting results.
• wult/ndl: deprecate '--continue' and add '--start-over' instead.
• man: generate man pages using 'argparse-manpage' tool.
• wult: add support to configure dynamic load line feature.
• wult: add the 'IntrLatency' metric (interrupt latency).
• wult: add the 'NMIWake' and 'NMIIntr' metrics (NMI counts).
• wult: add the 'IntrDelay' metric (interrupt delay).
• wult: fix starting by NIC PCI ID

[1.8.14] - 2021-03-09

Changed

• wult/ndl: print helpful message if ASPM is enabled.
• wult/ndl: fix permission issues for copied raw results.
• wult: fix '--ldist' option, it did not work in local mode.
• wult: change default launch distance range from 0-4ms to 0-8ms.
• wult/ndl: optimize remote MSR access.
• wult/ndl: suggest OS package names for tools that should be installed.
• wult/ndl: improve error message when opening wult result with ndl.
• wult/ndl: check if we already have enough datapoints earlier.

[1.8.13] - 2021-03-09

Changed

• Same as 1.8.12, we messed up verion numbers a bit.

[1.8.12] - 2021-02-11

Changed

• ndl: add --xases, --yaxes, --hist and --chist options to 'ndl report' command.
• wult: include 'ReqCState' metric to the HTML report.
• ndl: add 'ndl scan' command.
• wult: fix bug in diff report with old results.

[1.8.11] - 2021-01-13

Changed

• wult/ndl: add the '--time-limit' option.
• wult/ndl: support specifiers in '--ldist'.
• wult: support specifiers in '--post-trigger-range'.
• wult: support 0 in '--ldist'.
• ndl: removed the '--cstate-stats' option.
• ndl: fix parsing the 'tc' tool version number.
• wult/ndl: rename the 'stats' command into 'calc'.
• wult: add SilentTime vs LDist diagram.
• wult: do not fail when events are lost.
• ndl: replace '--post-trigger-threshold' with '--post-trigger-range'.

[1.8.10] - 2020-11-30

Changed

• wult/ndl: distinguish between CC1% (HW) and DerivedCC1% (SW).

[1.8.9] - 2020-11-30

Changed

• wult/ndl: add '--reportids' command-line option.

[1.8.8] - 2020-10-30

Changed

• wult: add '--hist none' and '--chist none' support.
• wult: improve 'wult scan' to print aliases.
• wult: renamed 'tsc-deadline-timer' method to shorted 'tdt'.

[1.8.7] - 2020-10-21

Changed

• wult: first release.