qsp: Simplify how qsp_report() prints
qsp_report() takes an fprintf()-like callback and a FILE * to pass to it. Its only caller hmp_sync_profile() passes monitor_fprintf() and the current monitor cast to FILE *. monitor_fprintf() casts it right back, and is otherwise identical to monitor_printf(). The type-punning is ugly. Drop the callback, and call qemu_printf() instead. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20190417191805.28198-7-armbru@redhat.com>
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@ -27,6 +27,7 @@
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#include "block/block.h"
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#include "block/block.h"
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#include "block/snapshot.h"
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#include "block/snapshot.h"
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#include "qemu/fprintf-fn.h"
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BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
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BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
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BlockDriverState *bs, Error **errp);
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BlockDriverState *bs, Error **errp);
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@ -11,15 +11,13 @@
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#ifndef QEMU_QSP_H
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#ifndef QEMU_QSP_H
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#define QEMU_QSP_H
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#define QEMU_QSP_H
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#include "qemu/fprintf-fn.h"
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enum QSPSortBy {
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enum QSPSortBy {
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QSP_SORT_BY_TOTAL_WAIT_TIME,
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QSP_SORT_BY_TOTAL_WAIT_TIME,
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QSP_SORT_BY_AVG_WAIT_TIME,
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QSP_SORT_BY_AVG_WAIT_TIME,
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};
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};
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void qsp_report(FILE *f, fprintf_function cpu_fprintf, size_t max,
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void qsp_report(size_t max, enum QSPSortBy sort_by,
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enum QSPSortBy sort_by, bool callsite_coalesce);
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bool callsite_coalesce);
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bool qsp_is_enabled(void);
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bool qsp_is_enabled(void);
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void qsp_enable(void);
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void qsp_enable(void);
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@ -1336,7 +1336,7 @@ static void hmp_info_sync_profile(Monitor *mon, const QDict *qdict)
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enum QSPSortBy sort_by;
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enum QSPSortBy sort_by;
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sort_by = mean ? QSP_SORT_BY_AVG_WAIT_TIME : QSP_SORT_BY_TOTAL_WAIT_TIME;
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sort_by = mean ? QSP_SORT_BY_AVG_WAIT_TIME : QSP_SORT_BY_TOTAL_WAIT_TIME;
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qsp_report((FILE *)mon, monitor_fprintf, max, sort_by, coalesce);
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qsp_report(max, sort_by, coalesce);
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}
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}
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static void hmp_info_history(Monitor *mon, const QDict *qdict)
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static void hmp_info_history(Monitor *mon, const QDict *qdict)
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21
util/qsp.c
21
util/qsp.c
@ -56,7 +56,9 @@
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* Critical-Section Execution to Improve the Performance of Multithreaded
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* Critical-Section Execution to Improve the Performance of Multithreaded
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* Applications", USENIX ATC'12.
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* Applications", USENIX ATC'12.
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*/
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*/
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#include "qemu/osdep.h"
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#include "qemu/osdep.h"
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#include "qemu/qemu-print.h"
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#include "qemu/thread.h"
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#include "qemu/thread.h"
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#include "qemu/timer.h"
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#include "qemu/timer.h"
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#include "qemu/qht.h"
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#include "qemu/qht.h"
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@ -678,8 +680,7 @@ static gboolean qsp_tree_report(gpointer key, gpointer value, gpointer udata)
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return FALSE;
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return FALSE;
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}
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}
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static void
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static void pr_report(const QSPReport *rep)
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pr_report(const QSPReport *rep, FILE *f, fprintf_function pr)
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{
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{
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char *dashes;
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char *dashes;
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size_t max_len = 0;
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size_t max_len = 0;
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@ -702,15 +703,15 @@ pr_report(const QSPReport *rep, FILE *f, fprintf_function pr)
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/* white space to leave to the right of "Call site" */
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/* white space to leave to the right of "Call site" */
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callsite_rspace = callsite_len - strlen("Call site");
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callsite_rspace = callsite_len - strlen("Call site");
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pr(f, "Type Object Call site%*s Wait Time (s) "
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qemu_printf("Type Object Call site%*s Wait Time (s) "
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" Count Average (us)\n", callsite_rspace, "");
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" Count Average (us)\n", callsite_rspace, "");
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/* build a horizontal rule with dashes */
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/* build a horizontal rule with dashes */
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n_dashes = 79 + callsite_rspace;
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n_dashes = 79 + callsite_rspace;
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dashes = g_malloc(n_dashes + 1);
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dashes = g_malloc(n_dashes + 1);
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memset(dashes, '-', n_dashes);
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memset(dashes, '-', n_dashes);
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dashes[n_dashes] = '\0';
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dashes[n_dashes] = '\0';
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pr(f, "%s\n", dashes);
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qemu_printf("%s\n", dashes);
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for (i = 0; i < rep->n_entries; i++) {
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for (i = 0; i < rep->n_entries; i++) {
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const QSPReportEntry *e = &rep->entries[i];
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const QSPReportEntry *e = &rep->entries[i];
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@ -726,11 +727,11 @@ pr_report(const QSPReport *rep, FILE *f, fprintf_function pr)
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e->callsite_at,
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e->callsite_at,
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callsite_len - (int)strlen(e->callsite_at), "",
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callsite_len - (int)strlen(e->callsite_at), "",
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e->time_s, e->n_acqs, e->ns_avg * 1e-3);
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e->time_s, e->n_acqs, e->ns_avg * 1e-3);
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pr(f, "%s", s->str);
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qemu_printf("%s", s->str);
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g_string_free(s, TRUE);
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g_string_free(s, TRUE);
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}
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}
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pr(f, "%s\n", dashes);
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qemu_printf("%s\n", dashes);
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g_free(dashes);
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g_free(dashes);
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}
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}
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@ -746,8 +747,8 @@ static void report_destroy(QSPReport *rep)
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g_free(rep->entries);
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g_free(rep->entries);
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}
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}
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void qsp_report(FILE *f, fprintf_function cpu_fprintf, size_t max,
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void qsp_report(size_t max, enum QSPSortBy sort_by,
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enum QSPSortBy sort_by, bool callsite_coalesce)
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bool callsite_coalesce)
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{
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{
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GTree *tree = g_tree_new_full(qsp_tree_cmp, &sort_by, g_free, NULL);
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GTree *tree = g_tree_new_full(qsp_tree_cmp, &sort_by, g_free, NULL);
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QSPReport rep;
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QSPReport rep;
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@ -762,7 +763,7 @@ void qsp_report(FILE *f, fprintf_function cpu_fprintf, size_t max,
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g_tree_foreach(tree, qsp_tree_report, &rep);
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g_tree_foreach(tree, qsp_tree_report, &rep);
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g_tree_destroy(tree);
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g_tree_destroy(tree);
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pr_report(&rep, f, cpu_fprintf);
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pr_report(&rep);
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report_destroy(&rep);
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report_destroy(&rep);
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}
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}
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