From: Tvrtko Ursulin <[email protected]>

Adds support for per-client engine busyness stats i915 exports in sysfs
and produces output like the below:

===============================================================================
intel-gpu-top: Intel Skylake (Gen9) @ /dev/dri/card0 -  951/ 950 MHz;
    0% RC6; 14.60/23.62 W;     1482 irqs/s

      IMC reads:     1287 MiB/s
     IMC writes:      115 MiB/s

         ENGINES     BUSY                                       MI_SEMA MI_WAIT
       Render/3D   95.48% |█████████████████████████████████  |      5%      0%
         Blitter   15.98% |█████                              |     10%      0%
           Video   35.40% |████████████                       |     26%      0%
    VideoEnhance    0.00% |                                   |      0%      0%

   PID              NAME   Render/3D     Blitter       Video    VideoEnhance
  1053          gem_wsim |███        ||           ||███        ||           |
  1054          gem_wsim |███████    ||█          ||           ||           |
===============================================================================

Apart from the existing physical engine utilization it now also shows
utilization per client and per engine class.

v2:
 * Version to match removal of global enable_stats toggle.
 * Plus various fixes.

v3:
 * Support brief backward jumps in client stats.

v4:
 * Support device selection.

v5:
 * Rebase for class aggregation.
 * Optimise sysfs reads a tiny bit by openat(2) and caching client root.

v6:
 * Show clients as soon as detected, just delay busyness data one period.
 * Add option to show numeric busyness ('n').
 * Further optimize sysfs reads.
 * Trim overgrown array. (Chris)
 * Simplify client sort callback and find client loop. (Chris)
 * Zap non-printable chars when displaying client names. (Chris)

v7:
 * Fix terminal height vs lines printed handling.
 * Optimise client searches by relying on sorting.
 * Added some sorting modes cyclable via 's'.
 * Stray semi-colon and furhter sort cleanup. (Chris)

Signed-off-by: Tvrtko Ursulin <[email protected]>
Reviewed-by: Chris Wilson <[email protected]> # v6
---
 tools/intel_gpu_top.c | 708 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 693 insertions(+), 15 deletions(-)

diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index 72ad7cbe9a8c..7a8c2b502a73 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2007-2019 Intel Corporation
+ * Copyright © 2007-2021 Intel Corporation
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -46,6 +46,8 @@
 
 #include "igt_perf.h"
 
+#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
+
 struct pmu_pair {
        uint64_t cur;
        uint64_t prev;
@@ -625,25 +627,482 @@ static void pmu_sample(struct engines *engines)
        }
 }
 
+enum client_status {
+       FREE = 0, /* mbz */
+       ALIVE,
+       PROBE
+};
+
+struct clients;
+
+struct client {
+       struct clients *clients;
+
+       enum client_status status;
+       int sysfs_root;
+       int busy_root;
+       unsigned int id;
+       unsigned int pid;
+       char name[24];
+       char print_name[24];
+       unsigned int samples;
+       unsigned long total_runtime;
+       unsigned long last_runtime;
+       struct engines *engines;
+       unsigned long *val;
+       uint64_t *last;
+};
+
+struct clients {
+       unsigned int num_clients;
+       unsigned int active_clients;
+
+       unsigned int num_classes;
+       struct engine_class *class;
+
+       char sysfs_root[128];
+
+       struct client *client;
+};
+
+#define for_each_client(clients, c, tmp) \
+       for ((tmp) = (clients)->num_clients, c = (clients)->client; \
+            (tmp > 0); (tmp)--, (c)++)
+
+static struct clients *init_clients(const char *drm_card)
+{
+       struct clients *clients = malloc(sizeof(*clients));
+       const char *slash;
+       ssize_t ret;
+
+       memset(clients, 0, sizeof(*clients));
+
+       if (drm_card) {
+               slash = rindex(drm_card, '/');
+               assert(slash);
+       } else {
+               slash = "card0";
+       }
+
+       ret = snprintf(clients->sysfs_root, sizeof(clients->sysfs_root),
+                      "/sys/class/drm/%s/clients/", slash);
+       assert(ret > 0 && ret < sizeof(clients->sysfs_root));
+
+       return clients;
+}
+
+static int __read_to_buf(int fd, char *buf, unsigned int bufsize)
+{
+       ssize_t ret;
+       int err;
+
+       ret = read(fd, buf, bufsize - 1);
+       err = errno;
+       if (ret < 1) {
+               errno = ret < 0 ? err : ENOMSG;
+
+               return -1;
+       }
+
+       if (ret > 1 && buf[ret - 1] == '\n')
+               buf[ret - 1] = '\0';
+       else
+               buf[ret] = '\0';
+
+       return 0;
+}
+
+static int
+__read_client_field(int root, const char *field, char *buf, unsigned int 
bufsize)
+{
+       int fd, ret;
+
+       fd = openat(root, field, O_RDONLY);
+       if (fd < 0)
+               return -1;
+
+       ret = __read_to_buf(fd, buf, bufsize);
+
+       close(fd);
+
+       return ret;
+}
+
+static uint64_t
+read_client_busy(struct client *client, unsigned int class)
+{
+       const char *class_str[] = { "0", "1", "2", "3", "4", "5", "6", "7" };
+       char buf[256], *b;
+       int ret;
+
+       assert(class < ARRAY_SIZE(class_str));
+       if (class >= ARRAY_SIZE(class_str))
+               return 0;
+
+       assert(client->sysfs_root >= 0);
+       if (client->sysfs_root < 0)
+               return 0;
+
+       if (client->busy_root < 0)
+               client->busy_root = openat(client->sysfs_root, "busy",
+                                          O_RDONLY | O_DIRECTORY);
+
+       assert(client->busy_root);
+       if (client->busy_root < 0)
+               return 0;
+
+       ret = __read_client_field(client->busy_root, class_str[class], buf,
+                                 sizeof(buf));
+       assert(ret == 0);
+       if (ret)
+               return 0;
+
+       /*
+        * Handle both single integer and key=value formats by skipping
+        * leading non-digits.
+        */
+       b = buf;
+       while (*b && !isdigit(*b))
+               b++;
+
+       return strtoull(b, NULL, 10);
+}
+
+static struct client *
+find_client(struct clients *clients, enum client_status status, unsigned int 
id)
+{
+       unsigned int start, num;
+       struct client *c;
+
+       start = status == FREE ? clients->active_clients : 0; /* Free block at 
the end. */
+       num = clients->num_clients - start;
+
+       for (c = &clients->client[start]; num; c++, num--) {
+               if (status != c->status)
+                       continue;
+
+               if (status == FREE || c->id == id)
+                       return c;
+       }
+
+       return NULL;
+}
+
+static void update_client(struct client *c, unsigned int pid, char *name)
+{
+       uint64_t val[c->clients->num_classes];
+       unsigned int i;
+
+       if (c->pid != pid)
+               c->pid = pid;
+
+       if (strcmp(c->name, name)) {
+               char *p;
+
+               strncpy(c->name, name, sizeof(c->name) - 1);
+               strncpy(c->print_name, name, sizeof(c->print_name) - 1);
+
+               p = c->print_name;
+               while (*p) {
+                       if (!isprint(*p))
+                               *p = '*';
+                       p++;
+               }
+       }
+
+       for (i = 0; i < c->clients->num_classes; i++)
+               val[i] = read_client_busy(c, c->clients->class[i].class);
+
+       c->last_runtime = 0;
+       c->total_runtime = 0;
+
+       for (i = 0; i < c->clients->num_classes; i++) {
+               if (val[i] < c->last[i])
+                       continue; /* It will catch up soon. */
+
+               c->total_runtime += val[i];
+               c->val[i] = val[i] - c->last[i];
+               c->last_runtime += c->val[i];
+               c->last[i] = val[i];
+       }
+
+       c->samples++;
+       c->status = ALIVE;
+}
+
+static void
+add_client(struct clients *clients, unsigned int id, unsigned int pid,
+          char *name, int sysfs_root)
+{
+       struct client *c;
+
+       assert(!find_client(clients, ALIVE, id));
+
+       c = find_client(clients, FREE, 0);
+       if (!c) {
+               unsigned int idx = clients->num_clients;
+
+               clients->num_clients += (clients->num_clients + 2) / 2;
+               clients->client = realloc(clients->client,
+                                         clients->num_clients * sizeof(*c));
+               assert(clients->client);
+
+               c = &clients->client[idx];
+               memset(c, 0, (clients->num_clients - idx) * sizeof(*c));
+       }
+
+       c->sysfs_root = sysfs_root;
+       c->busy_root = -1;
+       c->id = id;
+       c->clients = clients;
+       c->val = calloc(clients->num_classes, sizeof(c->val));
+       c->last = calloc(clients->num_classes, sizeof(c->last));
+       assert(c->val && c->last);
+
+       update_client(c, pid, name);
+}
+
+static void free_client(struct client *c)
+{
+       if (c->sysfs_root >= 0)
+               close(c->sysfs_root);
+       if (c->busy_root >= 0)
+               close(c->busy_root);
+       free(c->val);
+       free(c->last);
+       memset(c, 0, sizeof(*c));
+}
+
+static int
+read_client_sysfs(char *buf, int bufsize, const char *sysfs_root,
+                 unsigned int id, const char *field, int *client_root)
+{
+       ssize_t ret;
+
+       if (*client_root < 0) {
+               char namebuf[256];
+
+               ret = snprintf(namebuf, sizeof(namebuf), "%s/%u",
+                              sysfs_root, id);
+               assert(ret > 0 && ret < sizeof(namebuf));
+               if (ret <= 0 || ret == sizeof(namebuf))
+                       return -1;
+
+               *client_root = open(namebuf, O_RDONLY | O_DIRECTORY);
+       }
+
+       if (*client_root < 0)
+               return -1;
+
+       return __read_client_field(*client_root, field, buf, bufsize);
+}
+
+static void scan_clients(struct clients *clients)
+{
+       struct dirent *dent;
+       struct client *c;
+       unsigned int id;
+       int tmp;
+       DIR *d;
+
+       if (!clients)
+               return;
+
+       for_each_client(clients, c, tmp) {
+               assert(c->status != PROBE);
+               if (c->status == ALIVE)
+                       c->status = PROBE;
+               else
+                       break; /* Free block at the end of array. */
+       }
+
+       d = opendir(clients->sysfs_root);
+       if (!d)
+               return;
+
+       while ((dent = readdir(d)) != NULL) {
+               char name[24], pid[24];
+               int ret, root = -1, *pr;
+
+               if (dent->d_type != DT_DIR)
+                       continue;
+               if (!isdigit(dent->d_name[0]))
+                       continue;
+
+               id = atoi(dent->d_name);
+
+               c = find_client(clients, PROBE, id);
+
+               if (c)
+                       pr = &c->sysfs_root;
+               else
+                       pr = &root;
+
+               ret = read_client_sysfs(name, sizeof(name), clients->sysfs_root,
+                                       id, "name", pr);
+               ret |= read_client_sysfs(pid, sizeof(pid), clients->sysfs_root,
+                                       id, "pid", pr);
+               if (!ret) {
+                       if (!c)
+                               add_client(clients, id, atoi(pid), name, root);
+                       else
+                               update_client(c, atoi(pid), name);
+               } else if (c) {
+                       c->status = PROBE; /* Will be deleted below. */
+               }
+       }
+
+       closedir(d);
+
+       for_each_client(clients, c, tmp) {
+               if (c->status == PROBE)
+                       free_client(c);
+               else if (c->status == FREE)
+                       break;
+       }
+}
+
+static int client_last_cmp(const void *_a, const void *_b)
+{
+       const struct client *a = _a;
+       const struct client *b = _b;
+       long tot_a, tot_b;
+
+       /*
+        * Sort clients in descending order of runtime in the previous sampling
+        * period for active ones, followed by inactive. Tie-breaker is client
+        * id.
+        */
+
+       tot_a = a->status == ALIVE ? a->last_runtime : -1;
+       tot_b = b->status == ALIVE ? b->last_runtime : -1;
+
+       tot_b -= tot_a;
+       if (tot_b > 0)
+               return 1;
+       if (tot_b < 0)
+               return -1;
+
+       return (int)b->id - a->id;
+}
+
+static int client_total_cmp(const void *_a, const void *_b)
+{
+       const struct client *a = _a;
+       const struct client *b = _b;
+       long tot_a, tot_b;
+
+       tot_a = a->status == ALIVE ? a->total_runtime : -1;
+       tot_b = b->status == ALIVE ? b->total_runtime : -1;
+
+       tot_b -= tot_a;
+       if (tot_b > 0)
+               return 1;
+       if (tot_b < 0)
+               return -1;
+
+       return (int)b->id - a->id;
+}
+
+static int client_id_cmp(const void *_a, const void *_b)
+{
+       const struct client *a = _a;
+       const struct client *b = _b;
+       int id_a, id_b;
+
+       id_a = a->status == ALIVE ? a->id : -1;
+       id_b = b->status == ALIVE ? b->id : -1;
+
+       id_b -= id_a;
+       if (id_b > 0)
+               return 1;
+       if (id_b < 0)
+               return -1;
+
+       return (int)b->id - a->id;
+}
+
+static int (*client_cmp)(const void *, const void *) = client_last_cmp;
+
+static void sort_clients(struct clients *clients)
+{
+       unsigned int active, free;
+       struct client *c;
+       int tmp;
+
+       if (!clients)
+               return;
+
+       qsort(clients->client, clients->num_clients, sizeof(*clients->client),
+             client_cmp);
+
+       /* Trim excessive array space. */
+       active = 0;
+       for_each_client(clients, c, tmp) {
+               if (c->status != ALIVE)
+                       break; /* Active clients are first in the array. */
+               active++;
+       }
+
+       clients->active_clients = active;
+
+       free = clients->num_clients - active;
+       if (free > clients->num_clients / 2) {
+               active = clients->num_clients - free / 2;
+               if (active != clients->num_clients) {
+                       clients->num_clients = active;
+                       clients->client = realloc(clients->client,
+                                                 clients->num_clients *
+                                                 sizeof(*c));
+               }
+       }
+}
+
+
 static const char *bars[] = { " ", "▏", "▎", "▍", "▌", "▋", "▊", "▉", "█" };
 
+static void n_spaces(const unsigned int n)
+{
+       unsigned int i;
+
+       for (i = 0; i < n; i++)
+               putchar(' ');
+}
+
 static void
-print_percentage_bar(double percent, int max_len)
+print_percentage_bar(double percent, int max_len, bool numeric)
 {
-       int bar_len = percent * (8 * (max_len - 2)) / 100.0;
-       int i;
+       int bar_len, i, len = max_len - 2;
+       const int w = 8;
+
+       assert(max_len > 0);
+
+       bar_len = percent * len / 100.0;
+       if (bar_len > len)
+               bar_len = len;
+       bar_len *= w;
 
        putchar('|');
 
-       for (i = bar_len; i >= 8; i -= 8)
-               printf("%s", bars[8]);
+       for (i = bar_len; i >= w; i -= w)
+               printf("%s", bars[w]);
        if (i)
                printf("%s", bars[i]);
 
-       for (i = 0; i < (max_len - 2 - (bar_len + 7) / 8); i++)
-               putchar(' ');
+       len -= (bar_len + (w - 1)) / w;
+       n_spaces(len);
 
        putchar('|');
+
+       if (numeric) {
+               /*
+                * TODO: Finer grained reverse control to better preserve
+                * bar under numerical percentage.
+                */
+               printf("\033[%uD\033[7m", max_len - 1);
+               i = printf("%3.f%%", percent);
+               printf("\033[%uC\033[0m", max_len - i - 1);
+       }
 }
 
 #define DEFAULT_PERIOD_MS (1000)
@@ -705,8 +1164,6 @@ static const char *json_indent[] = {
        "\t\t\t\t\t",
 };
 
-#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
-
 static unsigned int json_prev_struct_members;
 static unsigned int json_struct_members;
 
@@ -744,6 +1201,18 @@ json_close_struct(void)
                fflush(stdout);
 }
 
+static void
+__json_add_member(const char *key, const char *val)
+{
+       assert(json_indent_level < ARRAY_SIZE(json_indent));
+
+       fprintf(out, "%s%s\"%s\": \"%s\"",
+               json_struct_members ? ",\n" : "",
+               json_indent[json_indent_level], key, val);
+
+       json_struct_members++;
+}
+
 static unsigned int
 json_add_member(const struct cnt_group *parent, struct cnt_item *item,
                unsigned int headers)
@@ -1046,8 +1515,6 @@ print_header(const struct igt_device_card *card,
                memmove(&groups[0], &groups[1],
                        sizeof(groups) - sizeof(groups[0]));
 
-       pops->open_struct(NULL);
-
        *consumed = print_groups(groups);
 
        if (output_mode == INTERACTIVE) {
@@ -1204,7 +1671,7 @@ print_engine(struct engines *engines, unsigned int i, 
double t,
                              engine->display_name, engine_items[0].buf);
 
                val = pmu_calc(&engine->busy.val, 1e9, t, 100);
-               print_percentage_bar(val, max_w - len);
+               print_percentage_bar(val, max_w > len ? max_w - len : 0, false);
 
                printf("%s\n", buf);
 
@@ -1219,7 +1686,6 @@ print_engines_footer(struct engines *engines, double t,
                     int lines, int con_w, int con_h)
 {
        pops->close_struct();
-       pops->close_struct();
 
        if (output_mode == INTERACTIVE) {
                if (lines++ < con_h)
@@ -1243,6 +1709,9 @@ static void init_engine_classes(struct engines *engines)
        unsigned int i, num;
        int max = -1;
 
+       if (engines->num_classes)
+               return;
+
        for (i = 0; i < engines->num_engines; i++) {
                struct engine *engine = engine_ptr(engines, i);
 
@@ -1404,6 +1873,153 @@ print_engines(struct engines *engines, double t, int 
lines, int w, int h)
        return lines;
 }
 
+static int
+print_clients_header(struct clients *clients, int lines,
+                    int con_w, int con_h, int *class_w)
+{
+       if (output_mode == INTERACTIVE) {
+               const char *pidname = "   PID              NAME ";
+               unsigned int num_active = 0;
+               int len = strlen(pidname);
+
+               if (lines++ >= con_h)
+                       return lines;
+
+               printf("\033[7m");
+               printf("%s", pidname);
+
+               if (lines++ >= con_h || len >= con_w)
+                       return lines;
+
+               if (clients->num_classes) {
+                       unsigned int i;
+                       int width;
+
+                       for (i = 0; i < clients->num_classes; i++) {
+                               if (clients->class[i].num_engines)
+                                       num_active++;
+                       }
+
+                       *class_w = width = (con_w - len) / num_active;
+
+                       for (i = 0; i < clients->num_classes; i++) {
+                               const char *name = clients->class[i].name;
+                               int name_len = strlen(name);
+                               int pad = (width - name_len) / 2;
+                               int spaces = width - pad - name_len;
+
+                               if (!clients->class[i].num_engines)
+                                       continue; /* Assert in the ideal world. 
*/
+
+                               if (pad < 0 || spaces < 0)
+                                       continue;
+
+                               n_spaces(pad);
+                               printf("%s", name);
+                               n_spaces(spaces);
+                               len += pad + name_len + spaces;
+                       }
+               }
+
+               n_spaces(con_w - len);
+               printf("\033[0m\n");
+       } else {
+               if (clients->num_classes)
+                       pops->open_struct("clients");
+       }
+
+       return lines;
+}
+
+static bool numeric_clients;
+
+static int
+print_client(struct client *c, struct engines *engines, double t, int lines,
+            int con_w, int con_h, unsigned int period_us, int *class_w)
+{
+       struct clients *clients = c->clients;
+       unsigned int i;
+
+       if (output_mode == INTERACTIVE) {
+               lines++;
+
+               printf("%6u %17s ", c->pid, c->print_name);
+
+               for (i = 0; c->samples > 1 && i < clients->num_classes; i++) {
+                       double pct;
+
+                       if (!clients->class[i].num_engines)
+                               continue; /* Assert in the ideal world. */
+
+                       pct = (double)c->val[i] / period_us / 1e3 * 100 /
+                             clients->class[i].num_engines;
+
+                       /*
+                        * Guard against possible time-drift between sampling
+                        * client data and time we obtained our time-delta from
+                        * PMU.
+                        */
+                       if (pct > 100.0)
+                               pct = 100.0;
+
+                       print_percentage_bar(pct, *class_w, numeric_clients);
+               }
+
+               putchar('\n');
+       } else if (output_mode == JSON) {
+               char buf[64];
+
+               snprintf(buf, sizeof(buf), "%u", c->id);
+               pops->open_struct(buf);
+
+               __json_add_member("name", c->print_name);
+
+               snprintf(buf, sizeof(buf), "%u", c->pid);
+               __json_add_member("pid", buf);
+
+               if (c->samples > 1) {
+                       pops->open_struct("engine-classes");
+
+                       for (i = 0; i < clients->num_classes; i++) {
+                               double pct;
+
+                               snprintf(buf, sizeof(buf), "%s",
+                                       clients->class[i].name);
+                               pops->open_struct(buf);
+
+                               pct = (double)c->val[i] / period_us / 1e3 * 100;
+                               snprintf(buf, sizeof(buf), "%f", pct);
+                               __json_add_member("busy", buf);
+
+                               __json_add_member("unit", "%");
+
+                               pops->close_struct();
+                       }
+
+                       pops->close_struct();
+               }
+
+               pops->close_struct();
+       }
+
+       return lines;
+}
+
+static int
+print_clients_footer(struct clients *clients, double t,
+                    int lines, int con_w, int con_h)
+{
+       if (output_mode == INTERACTIVE) {
+               if (lines++ < con_h)
+                       printf("\n");
+       } else {
+               if (clients->num_classes)
+                       pops->close_struct();
+       }
+
+       return lines;
+}
+
 static bool stop_top;
 
 static void sigint_handler(int  sig)
@@ -1459,6 +2075,22 @@ static void interactive_stdin(void)
        assert(ret == 0);
 }
 
+static void select_client_sort(void)
+{
+       static unsigned int client_sort;
+
+       switch (++client_sort % 3) {
+       case 0:
+               client_cmp = client_last_cmp;
+               break;
+       case 1:
+               client_cmp = client_total_cmp;
+               break;
+       case 2:
+               client_cmp = client_id_cmp;
+       }
+}
+
 static void process_stdin(unsigned int timeout_us)
 {
        struct pollfd p = { .fd = 0, .events = POLLIN };
@@ -1485,6 +2117,12 @@ static void process_stdin(unsigned int timeout_us)
                case '1':
                        class_view ^= true;
                        break;
+               case 'n':
+                       numeric_clients ^= true;
+                       break;
+               case 's':
+                       select_client_sort();
+                       break;
                };
        }
 }
@@ -1492,6 +2130,7 @@ static void process_stdin(unsigned int timeout_us)
 int main(int argc, char **argv)
 {
        unsigned int period_us = DEFAULT_PERIOD_MS * 1000;
+       struct clients *clients = NULL;
        int con_w = -1, con_h = -1;
        char *output_path = NULL;
        struct engines *engines;
@@ -1625,13 +2264,20 @@ int main(int argc, char **argv)
 
        ret = EXIT_SUCCESS;
 
+       clients = init_clients(card.pci_slot_name[0] ? card.card : NULL);
+       init_engine_classes(engines);
+       clients->num_classes = engines->num_classes;
+       clients->class = engines->class;
+
        pmu_sample(engines);
+       scan_clients(clients);
        codename = igt_device_get_pretty_name(&card, false);
 
        while (!stop_top) {
                bool consumed = false;
-               int lines = 0;
+               int j, lines = 0;
                struct winsize ws;
+               struct client *c;
                double t;
 
                /* Update terminal size. */
@@ -1650,10 +2296,15 @@ int main(int argc, char **argv)
                pmu_sample(engines);
                t = (double)(engines->ts.cur - engines->ts.prev) / 1e9;
 
+               scan_clients(clients);
+               sort_clients(clients);
+
                if (stop_top)
                        break;
 
                while (!consumed) {
+                       pops->open_struct(NULL);
+
                        lines = print_header(&card, codename, engines,
                                             t, lines, con_w, con_h,
                                             &consumed);
@@ -1661,6 +2312,33 @@ int main(int argc, char **argv)
                        lines = print_imc(engines, t, lines, con_w, con_h);
 
                        lines = print_engines(engines, t, lines, con_w, con_h);
+
+                       if (clients) {
+                               int class_w;
+
+                               lines = print_clients_header(clients, lines,
+                                                            con_w, con_h,
+                                                            &class_w);
+
+                               for_each_client(clients, c, j) {
+                                       assert(c->status != PROBE);
+                                       if (c->status != ALIVE)
+                                               break; /* Active clients are 
first in the array. */
+
+                                       if (lines > con_h)
+                                               break;
+
+                                       lines = print_client(c, engines, t,
+                                                            lines, con_w,
+                                                            con_h, period_us,
+                                                            &class_w);
+                               }
+
+                               lines = print_clients_footer(clients, t, lines,
+                                                            con_w, con_h);
+                       }
+
+                       pops->close_struct();
                }
 
                if (stop_top)
-- 
2.27.0

_______________________________________________
Intel-gfx mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Reply via email to