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303975 |
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11-Aug-2016 |
gjb |
Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, and rename it to RC1.
Update __FreeBSD_version.
Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and the dvd1.iso packages population.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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302408 |
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08-Jul-2016 |
gjb |
Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle. Prune svn:mergeinfo from the new branch, as nothing has been merged here.
Additional commits post-branch will follow.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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299353 |
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10-May-2016 |
trasz |
Remove misc NULL checks after M_WAITOK allocations.
MFC after: 1 month Sponsored by: The FreeBSD Foundation
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282658 |
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08-May-2015 |
jhb |
Convert hwpmc(4) debug printfs over to KTR.
Differential Revision: https://reviews.freebsd.org/D2487 Reviewed by: davide, emaste MFC after: 2 weeks Sponsored by: Norse Corp, Inc.
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277177 |
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14-Jan-2015 |
rrs |
Update the hwpmc driver to have the new type HASWELL_XEON. Also go back through HASWELL, IVY_BRIDGE, IVY_BRIDGE_XEON and SANDY_BRIDGE to straighten out all the missing PMCs. We also add a new pmc tool pmcstudy, this allows one to run the various formulas from the documents "Using Intel Vtune Amplifier XE on XXX Generation platforms" for IB/SB and Haswell. The tool also allows one to postulate your own formulas with any of the various PMC's. At some point I will enahance this to work with Brendan Gregg's flame-graphs so we can flamegraph various PMC interactions. Note the manual page also needs some work (lots of work) but gnn has committed to help me with that ;-) Reviewed by: gnn MFC after:1 month Sponsored by: Netflix Inc.
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263080 |
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12-Mar-2014 |
kib |
Use correct types for sizeof() in the calculations for the malloc(9) sizes [1]. While there, remove unneeded checks for failed allocations with M_WAITOK flag.
Submitted by: Conrad Meyer <cemeyer@uw.edu> [1] MFC after: 1 week
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261087 |
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23-Jan-2014 |
jhb |
Move <machine/apicvar.h> to <x86/apicvar.h>.
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233628 |
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28-Mar-2012 |
fabient |
Add software PMC support.
New kernel events can be added at various location for sampling or counting. This will for example allow easy system profiling whatever the processor is with known tools like pmcstat(8).
Simultaneous usage of software PMC and hardware PMC is possible, for example looking at the lock acquire failure, page fault while sampling on instructions.
Sponsored by: NETASQ MFC after: 1 month
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196224 |
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14-Aug-2009 |
jhb |
Adjust the handling of the local APIC PMC interrupt vector: - Provide lapic_disable_pmc(), lapic_enable_pmc(), and lapic_reenable_pmc() routines in the local APIC code that the hwpmc(4) driver can use to manage the local APIC PMC interrupt vector. - Do not enable the local APIC PMC interrupt vector by default when HWPMC_HOOKS is enabled. Instead, the hwpmc(4) driver explicitly enables the interrupt when it is succesfully initialized and disables the interrupt when it is unloaded. This avoids enabling the interrupt on unsupported CPUs which may result in spurious NMIs.
Reported by: rnoland Reviewed by: jkoshy Approved by: re (kib) MFC after: 2 weeks
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185341 |
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26-Nov-2008 |
jkim |
Introduce cpu_vendor_id and replace a lot of strcmp(cpu_vendor, "...").
Reviewed by: jhb, peter (early amd64 version)
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184802 |
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09-Nov-2008 |
jkoshy |
- Separate PMC class dependent code from other kinds of machine dependencies. A 'struct pmc_classdep' structure describes operations on PMCs; 'struct pmc_mdep' contains one or more 'struct pmc_classdep' structures depending on the CPU in question.
Inside PMC class dependent code, row indices are relative to the PMCs supported by the PMC class; MI code in "hwpmc_mod.c" translates global row indices before invoking class dependent operations.
- Augment the OP_GETCPUINFO request with the number of PMCs present in a PMC class.
- Move code common to Intel CPUs to file "hwpmc_intel.c".
- Move TSC handling to file "hwpmc_tsc.c".
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184214 |
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23-Oct-2008 |
des |
Fix a number of style issues in the MALLOC / FREE commit. I've tried to be careful not to fix anything that was already broken; the NFSv4 code is particularly bad in this respect.
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184205 |
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23-Oct-2008 |
des |
Retire the MALLOC and FREE macros. They are an abomination unto style(9).
MFC after: 3 months
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183266 |
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22-Sep-2008 |
jkoshy |
Support sparsely numbered CPUs.
Requested by: obrien, alfred (long ago)
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174395 |
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07-Dec-2007 |
jkoshy |
Kernel and hwpmc(4) support for callchain capture.
Sponsored by: FreeBSD Foundation and Google Inc.
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168856 |
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19-Apr-2007 |
jkoshy |
Fix witness(4) warnings about mutex use.
Group mutexes used in hwpmc(4) into 3 "types" in the sense of witness(4):
- leaf spin mutexes---only one of these should be held at a time, so these mutexes are specified as belonging to a single witness type "pmc-leaf".
- `struct pmc_owner' descriptors are protected by a spin mutex of witness type "pmc-owner-proc". Since we call wakeup_one() while holding these mutexes, the witness type of these mutexes needs to dominate that of "sleepq chain" mutexes.
- logger threads use a sleep mutex, of type "pmc-sleep".
Submitted by: wkoszek (earlier patch)
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157210 |
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28-Mar-2006 |
jkoshy |
Forcibly turn off all PMCs at module unload time.
MFC after: 1 week
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153728 |
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26-Dec-2005 |
jkoshy |
Wrap comment lines to be under 80 characters wide.
MFC after: 3 days
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153110 |
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05-Dec-2005 |
ru |
Fix -Wundef warnings found when compiling i386 LINT, GENERIC and custom kernels.
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151205 |
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10-Oct-2005 |
jkoshy |
Bug fix initialization on multi-core HTT CPUs.
Reported by: ps Tested by: ps
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147867 |
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09-Jul-2005 |
jkoshy |
sys/dev/hwpmc/hwpmc_{amd,piv,ppro}.c: - Update driver interrupt statistics correctly.
sys/sys/pmc.h, sys/dev/hwpmc/hwpmc_mod.c: - Fix a bug affecting debug printfs. - Move the 'stalled' flag from being in a bit in the 'pm_flags' field of a 'struct pmc' to a field of its own in the same structure. This flag is updated from the NMI handler and keeping it separate makes it easier to avoid races with other parts of the code.
sys/dev/hwpmc/hwpmc_logging.c: - Do arithmetic with 'uintptr_t' types rather that casting to and from 'char *'.
Approved by: re (scottl)
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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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146799 |
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30-May-2005 |
jkoshy |
Kernel hooks to support PMC sampling modes.
Reviewed by: alc
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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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145615 |
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28-Apr-2005 |
jkoshy |
Return the correct register number in the 'get_msr()' MD function.
Only allow a process to use the x86 RDPMC instruction if it has allocated and attached a PMC to itself.
Inform the MD layer of the "pseudo context switch out" that needs to be done when the last thread of a process is exiting.
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145338 |
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20-Apr-2005 |
marcel |
Include <sys/pmc.h> instead of <machine/pmc_mdep.h>. The MI header includes the MD header for us. Do not include <machine/specialreg.h> as it is not a header file that can be included from MI files. It is included from <machine/pmc_mdep.h> if so needed and possible.
Ok'd: jkoshy@
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145303 |
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19-Apr-2005 |
imp |
Remove unused variable that was horking up the LINT build
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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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