BloodTest: an interface to call other analysing tools Linux kernel has a lot of analysing tools, perf, ftrace, systemtap, KGTP and so on. And kernel also supplies a lot of internal value from procfs and sysfs to analyse the performance.
Sometime, user need get performance infomation quickly, low overhead and full coverage. BloodTest is for it. It is a interface can acess function of other analysing tools and records to internal buffer that user or application can access very quickly (mmap). Now, BloodTest just support record cpu, perf and task infomation in one seconds. Hui Zhu (2): BloodTest: kernel status BloodTest: perf Module: add /proc/modules_update_version BloodTest: task fs/proc/stat.c | 8 include/linux/bloodtest.h | 10 include/linux/kernel_stat.h | 3 init/Kconfig | 3 kernel/Makefile | 2 kernel/bloodtest/Makefile | 3 kernel/bloodtest/core.c | 132 +++++++++ kernel/bloodtest/internal.h | 61 ++++ kernel/bloodtest/kernel_stat.c | 62 ++++ kernel/bloodtest/pages.c | 266 ++++++++++++++++++ kernel/bloodtest/perf.c | 576 +++++++++++++++++++++++++++++++++++++++++ kernel/bloodtest/task.c | 447 +++++++++++++++++++++++++++++++ kernel/exit.c | 4 kernel/module.c | 19 + 14 files changed, 1592 insertions(+), 4 deletions(-)