Messages in this thread Patch in this message | | | From | Chen Yu <> | Subject | [PATCH][RFC] tools/power turbostat: Fix ACPI CState format issue | Date | Mon, 12 Oct 2020 18:02:05 +0800 |
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Currently if the system boots with BIOS _CST Cstate information enabled, the turbostat output would have unaligned problems:
C1_ACPI C2_ACPI C3_ACPI POLL% C1_ACPI% C2_ACPI% C3_ACPI% CPU%c1 5 37 138 0.00 0.02 1.30 98.51 0.38 0.00 0.00 99.43
The C1_ACPI% is of 8 bytes, so extend the format accordingly if the field name equals to/longer than 8 bytes.
After the patch applied:
C1_ACPI C2_ACPI C3_ACPI POLL% C1_ACPI% C2_ACPI% C3_ACPI% CPU%c1 2 42 96 0.00 0.12 2.60 97.09 0.60
Reported-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Chen Yu <yu.c.chen@intel.com> --- tools/power/x86/turbostat/turbostat.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 33b370865d16..73aa8738ae36 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -664,14 +664,16 @@ void print_header(char *delim) outp += sprintf(outp, "%sSMI", (printed++ ? delim : "")); for (mp = sys.tp; mp; mp = mp->next) { - + int name_len = strlen(mp->name); if (mp->format == FORMAT_RAW) { if (mp->width == 64) outp += sprintf(outp, "%s%18.18s", (printed++ ? delim : ""), mp->name); else outp += sprintf(outp, "%s%10.10s", (printed++ ? delim : ""), mp->name); } else { - if ((mp->type == COUNTER_ITEMS) && sums_need_wide_columns) + if (((mp->type == COUNTER_ITEMS) && sums_need_wide_columns) || + /* Deal with corner case: Cx_ACPI% is of 8 bytes. */ + ((mp->type == COUNTER_USEC) && name_len >= 8)) outp += sprintf(outp, "%s%8s", (printed++ ? delim : ""), mp->name); else outp += sprintf(outp, "%s%s", (printed++ ? delim : ""), mp->name); @@ -1005,6 +1007,7 @@ int format_counters(struct thread_data *t, struct core_data *c, /* Added counters */ for (i = 0, mp = sys.tp; mp; i++, mp = mp->next) { + int name_len = strlen(mp->name); if (mp->format == FORMAT_RAW) { if (mp->width == 32) outp += sprintf(outp, "%s0x%08x", (printed++ ? delim : ""), (unsigned int) t->counter[i]); @@ -1016,9 +1019,13 @@ int format_counters(struct thread_data *t, struct core_data *c, else outp += sprintf(outp, "%s%lld", (printed++ ? delim : ""), t->counter[i]); } else if (mp->format == FORMAT_PERCENT) { - if (mp->type == COUNTER_USEC) - outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), t->counter[i]/interval_float/10000); - else + if (mp->type == COUNTER_USEC) { + /* Deal with corner case: Cx_ACPI% is of 8 bytes. */ + if (name_len >= 8) + outp += sprintf(outp, "%s%-8.2f", (printed++ ? delim : ""), t->counter[i]/interval_float/10000); + else + outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), t->counter[i]/interval_float/10000); + } else outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * t->counter[i]/tsc); } } -- 2.25.1
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