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History log of /src/usr.sbin/tprof/tprof.h
RevisionDateAuthorComments
 1.5  17-Apr-2023  msaitoh Use the default counter if -e argument is not specified.

monitor command:
The default counter is selected if -e argument is not specified.
list command:
Print the name of the default counter for monitor and top command.
 1.4  16-Dec-2022  ryo branches: 1.4.2;
the "scale" option can be specified in the event name even in "tprof monitor"
 1.3  01-Dec-2022  ryo add "top" subcommand to tprof(8)
 1.2  13-Jul-2018  maxv branches: 1.2.2; 1.2.4;
Merge tpfmt(1) into tprof(8). We want to have access to everything with
only one tool. The code is copied mostly as-is, and the functionality is
available via the "analyze" command.

Eg:
tprof monitor -e llc-misses:k -o myfile.out sleep 20
tprof analyze < myfile.out

Will move soon, I don't like the reading via stdin.
 1.1  13-Jul-2018  maxv Revamp tprof.

Rewrite the Intel backend to use the generic PMC interface, which is
available on all Intel CPUs. Synchronize the AMD backend with the new
interface.

The kernel identifies the PMC interface, and gives its id to userland.
Userland then queries the events itself (via cpuid etc). These events
depend on the PMC interface.

The tprof utility is rewritten to allow the user to choose which event
to count (which was not possible until now, the event was hardcoded in
the backend). The command line format is based on usr.bin/pmc, eg:

tprof -e llc-misses:k -o output sleep 20

The man page is updated too, but the arguments will likely change soon
anyway so it doesn't matter a lot.

The tprof utility has three tables:

Intel Architectural Version 1
Intel Skylake/Kabylake
AMD Family 10h

A CPU can support a combination of tables. For example Kabylake has
Intel-Architectural-Version-1 and its own Intel-Kabylake table.

For now the Intel Skylake/Kabylake table contains only one event, just
to demonstrate that the combination of tables works. Tested on an
Intel Core i5 Kabylake.

The code for AMD Family 10h is taken from the code I had written for
usr.bin/pmc. I haven't tested it yet, but it's the same as pmc(1), so
I guess it works as-is.

The whole thing is written in such a way that (I think) it is not
complicated to add more CPU models, and more architectures (other than
x86).
 1.2.4.2  10-Jun-2019  christos Sync with HEAD
 1.2.4.1  13-Jul-2018  christos file tprof.h was added on branch phil-wifi on 2019-06-10 22:10:43 +0000
 1.2.2.2  28-Jul-2018  pgoyette Sync with HEAD
 1.2.2.1  13-Jul-2018  pgoyette file tprof.h was added on branch pgoyette-compat on 2018-07-28 04:38:15 +0000
 1.4.2.1  21-Jun-2023  martin Pull up following revision(s) (requested by msaitoh in ticket #210):

usr.sbin/tprof/tprof.8: revision 1.30
sys/dev/tprof/tprof_x86_amd.c: revision 1.8
sys/dev/tprof/tprof_armv8.c: revision 1.20
sys/dev/tprof/tprof_types.h: revision 1.7
sys/dev/tprof/tprof_x86_intel.c: revision 1.6
sys/dev/tprof/tprof_x86_intel.c: revision 1.7
sys/dev/tprof/tprof_x86_intel.c: revision 1.8
sys/dev/tprof/tprof.c: revision 1.23
usr.sbin/tprof/tprof.8: revision 1.25
usr.sbin/tprof/tprof.8: revision 1.26
usr.sbin/tprof/arch/tprof_x86.c: revision 1.16
usr.sbin/tprof/tprof.8: revision 1.27
usr.sbin/tprof/arch/tprof_x86.c: revision 1.17
usr.sbin/tprof/tprof.8: revision 1.28
usr.sbin/tprof/tprof.h: revision 1.5
usr.sbin/tprof/tprof.8: revision 1.29
sys/dev/tprof/tprof_armv7.c: revision 1.13
usr.sbin/tprof/tprof_top.c: revision 1.9
usr.sbin/tprof/tprof.c: revision 1.21

Add Cometlake support.

Obtain the number of general counters from CPUID 0xa.

Test cpuid_level in tprof_intel_ncounters().
This function is called before tprof_intel_ident().

KNF. No functional change.

Add two note to the tprof(8)'s manual page.
- "list" command prints the maximum number of counters that can be used
simultaneously.
- multiple -e arguments can be specified.

Use the default counter if -e argument is not specified.
monitor command:
The default counter is selected if -e argument is not specified.
list command:
Print the name of the default counter for monitor and top command.

tprof.8: new sentence, new line

tprof(8): fix markup nits

tprof.8: fix typo, s/speficied/specified/

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