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changelog.txt
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changelog.txt
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v0.3.0 Cleanup, New features
+ added three new features related to Turbo Boost and clocks
+ change frequency of a given domain (e.g., core, socket)
+ get maximum Turbo Boost ratio fused on the processor given a number of
cores active
+ read MSR_TURBO_ACTIVATION_RATIO to get the max non-turbo ratio currently
set on the processor
+ standardized libmsr error and warning messages
+ standardized code format
+ in-depth documentation of libmsr code base
- removing deprecated variables from code base
v0.2.0 Auto
+ added new build system
+ must be installed with included install.sh
+ supports Sandy Bridge, Ivy Bridge, and Haswell
+ added autoconf.c header file generator
v0.1.18 CSR
+ added PCI configuration register (CSR) support
+ (note that this currently requires CSR-SAFE)
+ (also only supports Intel CSRs)
+ added iMC performance counters
+ MC0 Channel 0-3 perf counters
+ MC1 Channel 0-3 perf counters
+ added Cbo (caching agent) performance counters
+ C#MSR_PMON_CTL#
+ C#_MSR_PMON_CTR#
+ C#_MSR_PMON_BOX_FILTER
+ C#_MSR_PMON_BOX_FILTER1
+ C#_MSR_PMON_BOX_CTL
+ fixed problem in RAPL architecture detection
v0.1.17 Request
+ will attempt to work even without whitelist (subject to change)
+ detects the kernel's core layout decisions at runtime
+ added MSRs
+ 0x3F8 - 0x3FE // in msr_misc.c
+ 0x60D // in msr_misc.c
+ 0xC30 - 0xC33 // in msr_counters.c
+ 0xC36 - 0xC39 // in msr_counters.c
+ 0x19D // in msr_thermal.c
+ will get energy readings if energy_status registers exist rather
than power_limit
+ power unit fixed for DRAM on Haswell
v0.1.16 Mission
- Removed deprecated variable from cpuid.c
+ cpuid.c get_core_conf() function has been reworked to be more portable
- Removed extraneous code in msr_rapl.c
+ msr_core.c devidx() function now works with even-odd cpu ordering schemes
+ msr_init() now stats msr_whitelist
+ libmsr_test now has an message saying if libmsr is working (WIP)
+ libmsr_test now explicitly resets power values to defaults
v0.1.15 Batch
+ Added msrmod command line utility
- Removed msr 0x63B from architecture 06_3C
+ updated msr_rapl to use the latest batch interface, details below
+ read_rapl_data() no longer takes any arguments
+ read_rapl_data() now uses the new batch interface
+ rapl_data struct has been changed, see msr_rapl.h for details
+ delta_rapl_data() no longer takes arguments
+ poll_rapl_data() no longer takes arguments
+ dump_rapl_data() arguments have changed, now only takes a FILE*