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Implement transaction timings debug

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Launch sway with SWAY_DEBUG=txn_timings to enable it.
This commit is contained in:
Ryan Dwyer 2018-06-25 09:09:43 +10:00
parent a3976e2659
commit 289d696adc
3 changed files with 29 additions and 0 deletions
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2
include/sway/server.h
View file

@ -45,6 +45,8 @@ struct sway_server {
struct wlr_wl_shell *wl_shell;
struct wl_listener wl_shell_surface;
bool debug_txn_timings;
bool terminating;
struct sway_transaction *head_transaction; // singly linked list

23
sway/desktop/transaction.c
View file

@ -2,6 +2,7 @@
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <wlr/types/wlr_buffer.h>
#include <wlr/types/wlr_linux_dmabuf.h>
#include "sway/debug.h"
@ -32,6 +33,8 @@ struct sway_transaction {
list_t *damage; // struct wlr_box *
size_t num_waiting;
struct sway_transaction *next;
struct timespec create_time;
struct timespec commit_time;
};
struct sway_transaction_instruction {
@ -48,6 +51,9 @@ struct sway_transaction *transaction_create() {
calloc(1, sizeof(struct sway_transaction));
transaction->instructions = create_list();
transaction->damage = create_list();
if (server.debug_txn_timings) {
clock_gettime(CLOCK_MONOTONIC, &transaction->create_time);
}
return transaction;
}
@ -177,6 +183,20 @@ void transaction_add_damage(struct sway_transaction *transaction,
*/
static void transaction_apply(struct sway_transaction *transaction) {
wlr_log(L_DEBUG, "Applying transaction %p", transaction);
if (server.debug_txn_timings) {
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
struct timespec *create = &transaction->create_time;
struct timespec *commit = &transaction->commit_time;
float ms_arranging = (commit->tv_sec - create->tv_sec) * 1000 +
(commit->tv_nsec - create->tv_nsec) / 1000000.0;
float ms_waiting = (now.tv_sec - commit->tv_sec) * 1000 +
(now.tv_nsec - commit->tv_nsec) / 1000000.0;
float ms_total = ms_arranging + ms_waiting;
wlr_log(L_DEBUG, "Transaction %p: %.1fms arranging, %.1fms waiting, "
"%.1fms total (%.1f frames if 60hz)", transaction,
ms_arranging, ms_waiting, ms_total, ms_total / (1000 / 60));
}
int i;
// Apply the instruction state to the container's current state
for (i = 0; i < transaction->instructions->length; ++i) {
@ -271,6 +291,9 @@ void transaction_commit(struct sway_transaction *transaction) {
}
list_add(con->instructions, instruction);
}
if (server.debug_txn_timings) {
clock_gettime(CLOCK_MONOTONIC, &transaction->commit_time);
}
if (server.head_transaction) {
// There is another transaction in progress - we must add this one to
// the queue so we complete after it.

4
sway/server.c
View file

@ -113,6 +113,10 @@ bool server_init(struct sway_server *server) {
return false;
}
const char *debug = getenv("SWAY_DEBUG");
if (debug != NULL && strcmp(debug, "txn_timings") == 0) {
server->debug_txn_timings = true;
}
server->destroying_containers = create_list();
input_manager = input_manager_create(server);