linux-stable/tools/perf
Leo Yan 0ee281e1e4 perf mem2node: Improve warning if detected no memory nodes
Some archs (e.g. x86 and Arm64) don't enable the configuration
CONFIG_MEMORY_HOTPLUG by default, if this configuration is not enabled
when build the kernel image, the SysFS for memory nodes will be missed.
This results in perf tool has no chance to catpure the memory nodes
information, when perf tool reports the result and detects no memory
nodes, it outputs "assertion failed at util/mem2node.c:99".

The output log doesn't give out reason for the failure and users have no
clue for how to fix it.  This patch changes to use explicit way for
warning: it tells user that detected no memory nodes and suggests to
enable CONFIG_MEMORY_HOTPLUG for kernel building.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201019003613.8399-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-04 09:42:40 -03:00
..
arch perf annotate mips: Add perf arch instructions annotate handlers 2020-11-04 09:42:40 -03:00
bench perf tools changes for v5.10: 1st batch 2020-10-17 11:47:46 -07:00
Documentation perf c2c: Update documentation for metrics reorganization 2020-10-15 12:02:12 -03:00
examples/bpf
include/bpf
jvmti perf jvmti: Remove redundant jitdump line table entries 2020-05-29 16:51:38 -03:00
pmu-events perf vendor events: Fix DRAM_BW_Use 0 issue for CLX/SKX 2020-11-03 08:31:31 -03:00
python
scripts perf script: Add min, max to futex-contention output, in addition to avg 2020-09-23 12:58:53 -03:00
tests perf tools: Remove broken __no_tail_call attribute 2020-11-03 08:32:15 -03:00
trace perf trace: Use the autogenerated mmap 'prot' string/id table 2020-10-01 11:35:01 -03:00
ui perf hists browser: Increase size of 'buf' in perf_evsel__hists_browse() 2020-11-03 09:11:45 -03:00
util perf mem2node: Improve warning if detected no memory nodes 2020-11-04 09:42:40 -03:00
.gitignore
Build
builtin-annotate.c perf evsel: Rename perf_evsel__resort*() to evsel__resort*() 2020-05-28 10:03:24 -03:00
builtin-bench.c perf bench: Add build-id injection benchmark 2020-10-13 10:59:42 -03:00
builtin-buildid-cache.c perf tools: Pass build_id object to build_id__sprintf() 2020-10-14 08:46:22 -03:00
builtin-buildid-list.c
builtin-c2c.c perf c2c: Add metrics "RMT Load Hit" 2020-10-15 09:34:51 -03:00
builtin-config.c
builtin-data.c perf data: Add support to store time of day in CTF data conversion 2020-08-06 09:43:37 -03:00
builtin-diff.c perf diff: Support hot streams comparison 2020-10-14 13:34:48 -03:00
builtin-evlist.c perf evsel: Rename perf_evsel__fprintf() to evsel__fprintf() 2020-05-28 10:03:24 -03:00
builtin-ftrace.c perf: ftrace: Add filter support for option -F/--funcs 2020-09-04 16:11:16 -03:00
builtin-help.c
builtin-inject.c perf tools: Pass build_id object to filename__read_build_id() 2020-10-14 08:45:16 -03:00
builtin-kallsyms.c
builtin-kmem.c perf kmem: Pass additional arguments to 'perf record' 2020-07-10 09:37:55 -03:00
builtin-kvm.c perf evlist: Fix the class prefix for 'struct evlist' 'add' evsel methods 2020-06-22 16:28:09 -03:00
builtin-list.c perf list: Remove dead code in argument check 2020-09-09 11:12:10 -03:00
builtin-lock.c perf lock: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*() 2020-05-05 16:35:31 -03:00
builtin-mem.c perf c2c: Fix 'perf c2c record -e list' to show the default events used 2020-05-28 10:03:25 -03:00
builtin-probe.c perf probe: Do not show the skipped events 2020-05-28 10:03:24 -03:00
builtin-record.c perf tools: Consolidate close_control_option()'s into one function 2020-09-04 16:11:16 -03:00
builtin-report.c perf report: Disable ordered_events for raw dump 2020-09-01 12:20:25 -03:00
builtin-sched.c perf sched: Show start of latency as well 2020-10-13 11:01:42 -03:00
builtin-script.c perf script: Display negative tid in non-sample events 2020-09-17 16:06:22 -03:00
builtin-stat.c perf tools: Allow creation of cgroup without open 2020-09-28 09:18:06 -03:00
builtin-timechart.c perf tools: Replace zero-length array with flexible-array 2020-05-28 10:03:27 -03:00
builtin-top.c perf top: Skip side-band event setup if HAVE_LIBBPF_SUPPORT is not set 2020-08-21 10:22:23 -03:00
builtin-trace.c perf trace: Fix segfault when trying to trace events by cgroup 2020-11-03 08:31:03 -03:00
builtin-version.c perf version: Add a feature for libpfm4 2020-11-04 09:42:40 -03:00
builtin.h
check-headers.sh perf tools: Separate the checking of headers only used to build beautification tables 2020-09-29 08:56:38 -03:00
command-list.txt
CREDITS
design.txt
Makefile
Makefile.config perf tools: Remove LTO compiler options when building perl support 2020-11-03 08:24:54 -03:00
Makefile.perf perf trace: Use the autogenerated mmap 'prot' string/id table 2020-10-01 11:35:01 -03:00
MANIFEST
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h perf tests: Call test_attr__open() directly 2020-09-10 11:55:37 -03:00
perf-with-kcore.sh
perf.c
perf.h