From 071e9a1e12dceaec6f9d3ffe6e77ee68364166d6 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 24 Feb 2016 09:46:47 +0100 Subject: perf tools: Introduce perf_mem__lvl_scnprintf function Move meminfo's lvl display function into mem-events.c object, so it could be reused later from script code. Signed-off-by: Jiri Olsa Cc: Andi Kleen Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1456303616-26926-7-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/mem-events.c | 53 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) (limited to 'tools/perf/util/mem-events.c') diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c index 4be3eb74001b..bddb1217d129 100644 --- a/tools/perf/util/mem-events.c +++ b/tools/perf/util/mem-events.c @@ -130,3 +130,56 @@ void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info) if (miss) strncat(out, " miss", sz - l); } + +static const char * const mem_lvl[] = { + "N/A", + "HIT", + "MISS", + "L1", + "LFB", + "L2", + "L3", + "Local RAM", + "Remote RAM (1 hop)", + "Remote RAM (2 hops)", + "Remote Cache (1 hop)", + "Remote Cache (2 hops)", + "I/O", + "Uncached", +}; + +void perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info) +{ + size_t i, l = 0; + u64 m = PERF_MEM_LVL_NA; + u64 hit, miss; + + if (mem_info) + m = mem_info->data_src.mem_lvl; + + sz -= 1; /* -1 for null termination */ + out[0] = '\0'; + + hit = m & PERF_MEM_LVL_HIT; + miss = m & PERF_MEM_LVL_MISS; + + /* already taken care of */ + m &= ~(PERF_MEM_LVL_HIT|PERF_MEM_LVL_MISS); + + for (i = 0; m && i < ARRAY_SIZE(mem_lvl); i++, m >>= 1) { + if (!(m & 0x1)) + continue; + if (l) { + strcat(out, " or "); + l += 4; + } + strncat(out, mem_lvl[i], sz - l); + l += strlen(mem_lvl[i]); + } + if (*out == '\0') + strcpy(out, "N/A"); + if (hit) + strncat(out, " hit", sz - l); + if (miss) + strncat(out, " miss", sz - l); +} -- cgit v1.2.3-59-g8ed1b