On 05/28/2018 05:03 AM, Abhishek Goel wrote: > The names of the idle states in the output of cpupower monitor command are > truncated to 4 characters. On POWER9, this creates ambiguity as the states > are named "stop0", "stop1", etc. > > root:~# cpupower monitor > |Idle_Stats > PKG |CORE|CPU | snoo | stop | stop | stop | stop | stop | stop > 0| 0| 0| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 1.90 > 0| 0| 1| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 > 0| 0| 2| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 > 0| 0| 3| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 > > This patch modifies the output to print the state name that results in a > legible output. The names will be printed with atmost 1 padding in left. > > root:~# cpupower monitor > | Idle_Stats > PKG|CORE| CPU|snooze|stop0L| stop0|stop1L| stop1|stop2L| stop2 > 0| 0| 0| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.72 > 0| 0| 1| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 > 0| 0| 2| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 > 0| 0| 3| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 > > This patch does not affect the output for intel. > Output for intel before applying the patch: > > root:~# cpupower monitor > |Idle_Stats > CPU | POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S | C9-S | C10- > 0| 0.00| 0.14| 0.39| 0.35| 7.41| 0.00| 17.67| 1.01| 70.03 > 2| 0.00| 0.19| 0.47| 0.10| 6.50| 0.00| 29.66| 2.17| 58.07 > 1| 0.00| 0.11| 0.50| 1.50| 9.11| 0.18| 18.19| 0.40| 66.63 > 3| 0.00| 0.67| 0.42| 0.03| 5.84| 0.00| 12.58| 0.77| 77.14 > > Output for intel after applying the patch: > > root:~# cpupower monitor > | Idle_Stats > CPU| POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S | C9-S | C10- > 0| 0.03| 0.33| 1.01| 0.27| 3.03| 0.00| 19.18| 0.00| 71.24 > 2| 0.00| 1.58| 0.58| 0.42| 8.55| 0.09| 21.11| 0.99| 63.32 > 1| 0.00| 1.26| 0.88| 0.43| 9.00| 0.02| 7.78| 4.65| 71.91 > 3| 0.00| 0.30| 0.42| 0.06| 13.62| 0.21| 30.29| 0.00| 52.45 > > Signed-off-by: Abhishek Goel <hunt...@linux.vnet.ibm.com> > --- > > Previous attempt was made by Seeteena Thoufeek. This is the patch list > link: https://patchwork.kernel.org/project/linux-pm/list/?submitter= > 172041&state=*&archive=both > > .../utils/idle_monitor/cpuidle_sysfs.c | 15 ++++++++ > .../utils/idle_monitor/cpupower-monitor.c | 35 +++++++++++-------- > .../utils/idle_monitor/cpupower-monitor.h | 9 +++++ > 3 files changed, 44 insertions(+), 15 deletions(-) > > diff --git a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c > b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c > index 5b3205f16217..5b8c4956ff9a 100644 > --- a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c > +++ b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c > @@ -126,6 +126,20 @@ void fix_up_intel_idle_driver_name(char *tmp, int num) > } > } > > +#ifdef __powerpc__ > +void map_power_idle_state_name(char *tmp) > +{ > + if (!strncmp(tmp, "stop0_lite", CSTATE_NAME_LEN)) > + strcpy(tmp, "stop0L"); > + else if (!strncmp(tmp, "stop1_lite", CSTATE_NAME_LEN)) > + strcpy(tmp, "stop1L"); > + else if (!strncmp(tmp, "stop2_lite", CSTATE_NAME_LEN)) > + strcpy(tmp, "stop2L"); > +} > +#else > +void map_power_idle_state_name(char *tmp) { } > +#endif > + > static struct cpuidle_monitor *cpuidle_register(void) > { > int num; > @@ -145,6 +159,7 @@ static struct cpuidle_monitor *cpuidle_register(void) > if (tmp == NULL) > continue; > > + map_power_idle_state_name(tmp); > fix_up_intel_idle_driver_name(tmp, num); > strncpy(cpuidle_cstates[num].name, tmp, CSTATE_NAME_LEN - 1); > free(tmp); > diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c > b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c > index 05f953f0f0a0..051da0a7c454 100644 > --- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c > +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c > @@ -70,36 +70,43 @@ void print_n_spaces(int n) > printf(" "); > } > > -/* size of s must be at least n + 1 */ > +/*s is filled with left and right spaces > + *to make its length atleast n+1 > + */ > int fill_string_with_spaces(char *s, int n) > { > + char *temp; > int len = strlen(s); > - if (len > n) > + > + if (len >= n) > return -1; > + > + temp = malloc(sizeof(char) * (n+1)); > for (; len < n; len++) > s[len] = ' '; > s[len] = '\0'; > + snprintf(temp, n+1, " %s", s); > + strcpy(s, temp); > + free(temp); > return 0; > } > > +#define MAX_COL_WIDTH 6 > void print_header(int topology_depth) > { > int unsigned mon; > int state, need_len; > cstate_t s; > char buf[128] = ""; > - int percent_width = 4; > > fill_string_with_spaces(buf, topology_depth * 5 - 1); > printf("%s|", buf); > > for (mon = 0; mon < avail_monitors; mon++) { > - need_len = monitors[mon]->hw_states_num * (percent_width + 3) > + need_len = monitors[mon]->hw_states_num * (MAX_COL_WIDTH + 1) > - 1; > - if (mon != 0) { > - printf("|| "); > - need_len--; > - } > + if (mon != 0) > + printf("||"); > sprintf(buf, "%s", monitors[mon]->name); > fill_string_with_spaces(buf, need_len); > printf("%s", buf); > @@ -107,23 +114,21 @@ void print_header(int topology_depth) > printf("\n"); > > if (topology_depth > 2) > - printf("PKG |"); > + printf(" PKG|"); > if (topology_depth > 1) > printf("CORE|"); > if (topology_depth > 0) > - printf("CPU |"); > + printf(" CPU|"); > > for (mon = 0; mon < avail_monitors; mon++) { > if (mon != 0) > - printf("|| "); > - else > - printf(" "); > + printf("||"); > for (state = 0; state < monitors[mon]->hw_states_num; state++) { > if (state != 0) > - printf(" | "); > + printf("|"); > s = monitors[mon]->hw_states[state]; > sprintf(buf, "%s", s.name); > - fill_string_with_spaces(buf, percent_width); > + fill_string_with_spaces(buf, MAX_COL_WIDTH); > printf("%s", buf); > } > printf(" "); > diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h > b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h > index 9e43f3371fbc..2ae50b499e0a 100644 > --- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h > +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h > @@ -15,7 +15,16 @@ > > #define MONITORS_MAX 20 > #define MONITOR_NAME_LEN 20 > + > +/* CSTATE_NAME_LEN is limited by header field width defined > + * in cpupower-monitor.c. Header field width is defined to be > + * sum of percent width and two spaces for padding. > + */ > +#ifdef __powerpc__ > +#define CSTATE_NAME_LEN 7 > +#else > #define CSTATE_NAME_LEN 5 > +#endif > #define CSTATE_DESC_LEN 60 > > int cpu_count; >
Thanks for the patch. Applied to git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux.git cpupower for 4.18-rc1 thanks, -- Shuah
