[Intel-gfx] [igt-dev] [PATCH i-g-t 5/6] intel_gpu_top: Remove clients support
Tvrtko Ursulin
tvrtko.ursulin at linux.intel.com
Fri Nov 26 13:07:24 UTC 2021
On 19/11/2021 12:59, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>
> When kernel feature was removed the intel_gpu_top part was forgotten.
>
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Will someone ack this or we carry this code until it ships, if it hasn't
already?
Regards,
Tvrtko
> ---
> man/intel_gpu_top.rst | 4 -
> tools/intel_gpu_top.c | 810 +-----------------------------------------
> 2 files changed, 1 insertion(+), 813 deletions(-)
>
> diff --git a/man/intel_gpu_top.rst b/man/intel_gpu_top.rst
> index f4dbfc5b44d9..b3b765b05feb 100644
> --- a/man/intel_gpu_top.rst
> +++ b/man/intel_gpu_top.rst
> @@ -56,10 +56,6 @@ Supported keys:
> 'q' Exit from the tool.
> 'h' Show interactive help.
> '1' Toggle between aggregated engine class and physical engine mode.
> - 'n' Toggle display of numeric client busyness overlay.
> - 's' Toggle between sort modes (runtime, total runtime, pid, client id).
> - 'i' Toggle display of clients which used no GPU time.
> - 'H' Toggle between per PID aggregation and individual clients.
>
> DEVICE SELECTION
> ================
> diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
> index 7311038a39f4..41c59a72c09d 100644
> --- a/tools/intel_gpu_top.c
> +++ b/tools/intel_gpu_top.c
> @@ -627,562 +627,6 @@ 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;
> - const char *slash;
> - ssize_t ret;
> - int dir;
> -
> - clients = malloc(sizeof(*clients));
> - if (!clients)
> - return NULL;
> -
> - 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));
> -
> - dir = open(clients->sysfs_root, O_DIRECTORY | O_RDONLY);
> - if (dir < 0) {
> - free(clients);
> - clients = NULL;
> - } else {
> - close(dir);
> - }
> -
> - 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));
> - if (ret) {
> - close(client->busy_root);
> - client->busy_root = -1;
> - 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 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_pid_cmp(const void *_a, const void *_b)
> -{
> - const struct client *a = _a;
> - const struct client *b = _b;
> - int pid_a, pid_b;
> -
> - pid_a = a->status == ALIVE ? a->pid : INT_MAX;
> - pid_b = b->status == ALIVE ? b->pid : INT_MAX;
> -
> - pid_b -= pid_a;
> - if (pid_b > 0)
> - return -1;
> - if (pid_b < 0)
> - return 1;
> -
> - return (int)a->id - b->id;
> -}
> -
> -static int (*client_cmp)(const void *, const void *) = client_last_cmp;
> -
> -static struct clients *sort_clients(struct clients *clients,
> - int (*cmp)(const void *, const void *))
> -{
> - unsigned int active, free;
> - struct client *c;
> - int tmp;
> -
> - if (!clients)
> - return clients;
> -
> - qsort(clients->client, clients->num_clients, sizeof(*clients->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));
> - }
> - }
> -
> - return clients;
> -}
> -
> -static bool aggregate_pids = true;
> -
> -static struct clients *display_clients(struct clients *clients)
> -{
> - struct client *ac, *c, *cp = NULL;
> - struct clients *aggregated;
> - int tmp, num = 0;
> -
> - if (!aggregate_pids)
> - goto out;
> -
> - /* Sort by pid first to make it easy to aggregate while walking. */
> - sort_clients(clients, client_pid_cmp);
> -
> - aggregated = calloc(1, sizeof(*clients));
> - assert(aggregated);
> -
> - ac = calloc(clients->num_clients, sizeof(*c));
> - assert(ac);
> -
> - aggregated->num_classes = clients->num_classes;
> - aggregated->class = clients->class;
> - aggregated->client = ac;
> -
> - for_each_client(clients, c, tmp) {
> - unsigned int i;
> -
> - if (c->status == FREE)
> - break;
> -
> - assert(c->status == ALIVE);
> -
> - if ((cp && c->pid != cp->pid) || !cp) {
> - ac = &aggregated->client[num++];
> -
> - /* New pid. */
> - ac->clients = aggregated;
> - ac->status = ALIVE;
> - ac->id = -c->pid;
> - ac->pid = c->pid;
> - ac->busy_root = -1;
> - ac->sysfs_root = -1;
> - strcpy(ac->name, c->name);
> - strcpy(ac->print_name, c->print_name);
> - ac->engines = c->engines;
> - ac->val = calloc(clients->num_classes,
> - sizeof(ac->val[0]));
> - assert(ac->val);
> - ac->samples = 1;
> - }
> -
> - cp = c;
> -
> - if (c->samples < 2)
> - continue;
> -
> - ac->samples = 2; /* All what matters for display. */
> - ac->total_runtime += c->total_runtime;
> - ac->last_runtime += c->last_runtime;
> -
> - for (i = 0; i < clients->num_classes; i++)
> - ac->val[i] += c->val[i];
> - }
> -
> - aggregated->num_clients = num;
> - aggregated->active_clients = num;
> -
> - clients = aggregated;
> -
> -out:
> - return sort_clients(clients, client_cmp);
> -}
> -
> -static void free_clients(struct clients *clients)
> -{
> - struct client *c;
> - unsigned int tmp;
> -
> - for_each_client(clients, c, tmp) {
> - free(c->val);
> - free(c->last);
> - }
> -
> - free(clients->client);
> - free(clients);
> -}
> -
> -static struct clients *scan_clients(struct clients *clients)
> -{
> - struct dirent *dent;
> - struct client *c;
> - unsigned int id;
> - int tmp;
> - DIR *d;
> -
> - if (!clients)
> - return clients;
> -
> - 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 clients;
> -
> - 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;
> - }
> -
> - return display_clients(clients);
> -}
> -
> static const char *bars[] = { " ", "▏", "▎", "▍", "▌", "▋", "▊", "▉", "█" };
>
> static void n_spaces(const unsigned int n)
> @@ -1324,18 +768,6 @@ 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)
> @@ -2061,157 +1493,6 @@ 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 bool filter_idle;
> -
> -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) {
> - if (filter_idle && (!c->total_runtime || c->samples < 2))
> - return lines;
> -
> - 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)
> @@ -2267,31 +1548,6 @@ static void interactive_stdin(void)
> assert(ret == 0);
> }
>
> -static void select_client_sort(void)
> -{
> - struct {
> - int (*cmp)(const void *, const void *);
> - const char *msg;
> - } cmp[] = {
> - { client_last_cmp, "Sorting clients by current GPU usage." },
> - { client_total_cmp, "Sorting clients by accummulated GPU usage." },
> - { client_pid_cmp, "Sorting clients by pid." },
> - { client_id_cmp, "Sorting clients by sysfs id." },
> - };
> - static unsigned int client_sort;
> -
> -bump:
> - if (++client_sort >= ARRAY_SIZE(cmp))
> - client_sort = 0;
> -
> - client_cmp = cmp[client_sort].cmp;
> - header_msg = cmp[client_sort].msg;
> -
> - /* Sort by client id makes no sense with pid aggregation. */
> - if (aggregate_pids && client_cmp == client_id_cmp)
> - goto bump;
> -}
> -
> static bool in_help;
>
> static void process_help_stdin(void)
> @@ -2334,29 +1590,9 @@ static void process_normal_stdin(void)
> else
> header_msg = "Showing physical engines.";
> break;
> - case 'i':
> - filter_idle ^= true;
> - if (filter_idle)
> - header_msg = "Hiding inactive clients.";
> - else
> - header_msg = "Showing inactive clients.";
> - break;
> - case 'n':
> - numeric_clients ^= true;
> - break;
> - case 's':
> - select_client_sort();
> - break;
> case 'h':
> in_help = true;
> break;
> - case 'H':
> - aggregate_pids ^= true;
> - if (aggregate_pids)
> - header_msg = "Aggregating clients.";
> - else
> - header_msg = "Showing individual clients.";
> - break;
> };
> }
> }
> @@ -2384,10 +1620,6 @@ static void show_help_screen(void)
> printf(
> "Help for interactive commands:\n\n"
> " '1' Toggle between aggregated engine class and physical engine mode.\n"
> -" 'n' Toggle display of numeric client busyness overlay.\n"
> -" 's' Toggle between sort modes (runtime, total runtime, pid, client id).\n"
> -" 'i' Toggle display of clients which used no GPU time.\n"
> -" 'H' Toggle between per PID aggregation and individual clients.\n"
> "\n"
> " 'h' or 'q' Exit interactive help.\n"
> "\n");
> @@ -2396,7 +1628,6 @@ static void show_help_screen(void)
> 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;
> @@ -2530,23 +1761,15 @@ int main(int argc, char **argv)
>
> ret = EXIT_SUCCESS;
>
> - clients = init_clients(card.pci_slot_name[0] ? card.card : NULL);
> init_engine_classes(engines);
> - if (clients) {
> - 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) {
> - struct clients *disp_clients;
> bool consumed = false;
> - int j, lines = 0;
> struct winsize ws;
> - struct client *c;
> + int lines = 0;
> double t;
>
> /* Update terminal size. */
> @@ -2565,8 +1788,6 @@ int main(int argc, char **argv)
> pmu_sample(engines);
> t = (double)(engines->ts.cur - engines->ts.prev) / 1e9;
>
> - disp_clients = scan_clients(clients);
> -
> if (stop_top)
> break;
>
> @@ -2586,41 +1807,12 @@ int main(int argc, char **argv)
>
> lines = print_engines(engines, t, lines, con_w, con_h);
>
> - if (disp_clients) {
> - int class_w;
> -
> - lines = print_clients_header(disp_clients, lines,
> - con_w, con_h,
> - &class_w);
> -
> - for_each_client(disp_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(disp_clients, t,
> - lines, con_w,
> - con_h);
> - }
> -
> pops->close_struct();
> }
>
> if (stop_top)
> break;
>
> - if (disp_clients != clients)
> - free_clients(disp_clients);
> -
> if (output_mode == INTERACTIVE)
> process_stdin(period_us);
> else
>
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