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272461 |
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02-Oct-2014 |
gjb |
Copy stable/10@r272459 to releng/10.1 as part of the 10.1-RELEASE process.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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256281 |
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10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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233321 |
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22-Mar-2012 |
jkoshy |
Correct a function prototype.
Submitted by: "Anders Magnusson" <ragge at ludd.ltu.se>, via joel
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226514 |
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18-Oct-2011 |
fabient |
Add a flush of the current PMC log buffer before displaying the next top.
As the underlying block is 4KB if the PMC throughput is low the measurement will be reported on the next tick. pmcstat(8) use the modified flush API to reclaim current buffer before displaying next top.
MFC after: 1 month
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190395 |
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24-Mar-2009 |
fabient |
Allow compile from c++ for libpmc
Approved by: jkoshy (mentor) MFC after: 3 days
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147191 |
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09-Jun-2005 |
jkoshy |
MFP4:
- Implement sampling modes and logging support in hwpmc(4).
- Separate MI and MD parts of hwpmc(4) and allow sharing of PMC implementations across different architectures. Add support for P4 (EMT64) style PMCs to the amd64 code.
- New pmcstat(8) options: -E (exit time counts) -W (counts every context switch), -R (print log file).
- pmc(3) API changes, improve our ability to keep ABI compatibility in the future. Add more 'alias' names for commonly used events.
- bug fixes & documentation.
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145774 |
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01-May-2005 |
jkoshy |
Add convenience APIs pmc_width() and pmc_capabilities() to -lpmc. Have pmcstat(8) and pmccontrol(8) use these APIs.
Return PMC class-related constants (PMC widths and capabilities) with the OP GETCPUINFO call leaving OP PMCINFO to return only the dynamic information associated with a PMC (i.e., whether enabled, owner pid, reload count etc.).
Allow pmc_read() (i.e., OPS PMCRW) on active self-attached PMCs to get upto-date values from hardware since we can guarantee that the hardware is running the correct PMC at the time of the call.
Bug fixes: - (x86 class processors) Fix a bug that prevented an RDPMC instruction from being recognized as permitted till after the attached process had context switched out and back in again after a pmc_start() call.
Tighten the rules for using RDPMC class instructions: a GETMSR OP is now allowed only after an OP ATTACH has been done by the PMC's owner to itself. OP GETMSR is not allowed for PMCs that track descendants, for PMCs attached to processes other than their owner processes.
- (P4/HTT processors only) Fix a bug that caused the MI and MD layers to get out of sync. Add a new MD operation 'get_config()' as part of this fix.
- Allow multiple system-mode PMCs at the same row-index but on different CPUs to be allocated.
- Reject allocation of an administratively disabled PMC.
Misc. code cleanups and refactoring. Improve a few comments.
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145256 |
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19-Apr-2005 |
jkoshy |
Bring a working snapshot of hwpmc(4), its associated libraries, userland utilities and documentation into -CURRENT.
Bump FreeBSD_version.
Reviewed by: alc, jhb (kernel changes)
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