git: flame_graph - Add initial code to support flame graphs
Matthew Dillon
dillon at crater.dragonflybsd.org
Thu Feb 27 11:48:38 PST 2020
commit 91dc43dd1215cf13344c65a8f9478bfd31b95814
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date: Thu Feb 27 11:47:15 2020 -0800
flame_graph - Add initial code to support flame graphs
* Add better PC sampling code to the kernel, capable of generating
call stack traces.
* Implement an initial flame_graph utility.
flame_graph > /tmp/x.out &
(let it run a while)
flame_graph -p < /tmp/x.out
Requested-by: mjg
Summary of changes:
sys/cpu/x86_64/include/cpufunc.h | 3 +
sys/dev/crypto/rdrand/rdrand.c | 8 +-
sys/kern/kern_clock.c | 5 +-
sys/kern/kern_systimer.c | 7 +-
sys/platform/pc64/apic/apic_vector.s | 6 +-
sys/platform/pc64/conf/files | 1 +
sys/platform/pc64/x86_64/mp_flame.c | 200 ++++++++++++++++++++++++++++++++++
sys/platform/pc64/x86_64/mp_machdep.c | 3 +
sys/sys/flame_graph.h | 25 +++++
sys/sys/systimer.h | 1 +
usr.bin/Makefile | 1 +
usr.bin/flame_graph/Makefile | 10 ++
usr.bin/flame_graph/collect.c | 179 ++++++++++++++++++++++++++++++
usr.bin/flame_graph/flame.h | 48 ++++++++
usr.bin/flame_graph/main.c | 63 +++++++++++
usr.bin/flame_graph/process.c | 137 +++++++++++++++++++++++
usr.bin/systat/symbols.c | 64 ++++++-----
17 files changed, 725 insertions(+), 36 deletions(-)
create mode 100644 sys/platform/pc64/x86_64/mp_flame.c
create mode 100644 sys/sys/flame_graph.h
create mode 100644 usr.bin/flame_graph/Makefile
create mode 100644 usr.bin/flame_graph/collect.c
create mode 100644 usr.bin/flame_graph/flame.h
create mode 100644 usr.bin/flame_graph/main.c
create mode 100644 usr.bin/flame_graph/process.c
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/91dc43dd1215cf13344c65a8f9478bfd31b95814
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