From 42e1fd80a5b8bf9188ddb502b788433ece189aae Mon Sep 17 00:00:00 2001 From: Alexey Budankov Date: Mon, 18 Mar 2019 20:41:33 +0300 Subject: perf record: Implement COMPRESSED event record and its attributes Implemented PERF_RECORD_COMPRESSED event, related data types, header feature and functions to write, read and print feature attributes from the trace header section. comp_mmap_len preserves the size of mmaped kernel buffer that was used during collection. comp_mmap_len size is used on loading stage as the size of decomp buffer for decompression of COMPRESSED events content. Committer notes: Fixed up conflict with BPF_PROG_INFO and BTF_BTF header features. Signed-off-by: Alexey Budankov Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/ebbaf031-8dda-3864-ebc6-7922d43ee515@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/env.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'tools/perf/util/env.h') diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index 34868ca7efd1..271a90b326c4 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -63,6 +63,10 @@ struct perf_env { struct cpu_cache_level *caches; int caches_cnt; u32 comp_ratio; + u32 comp_ver; + u32 comp_type; + u32 comp_level; + u32 comp_mmap_len; struct numa_node *numa_nodes; struct memory_node *memory_nodes; unsigned long long memory_bsize; @@ -81,6 +85,12 @@ struct perf_env { } bpf_progs; }; +enum perf_compress_type { + PERF_COMP_NONE = 0, + PERF_COMP_ZSTD, + PERF_COMP_MAX +}; + struct bpf_prog_info_node; struct btf_node; -- cgit v1.2.1