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migration: Create migrate_cpu_throttle_tailslow() function

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Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Juan Quintela 2023-03-02 10:29:51 +01:00
parent 9605c2ac28
commit 873f674c55
3 changed files with 11 additions and 2 deletions
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9
migration/options.c
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@ -527,6 +527,15 @@ uint8_t migrate_cpu_throttle_initial(void)
return s->parameters.cpu_throttle_initial;
}
bool migrate_cpu_throttle_tailslow(void)
{
MigrationState *s;
s = migrate_get_current();
return s->parameters.cpu_throttle_tailslow;
}
int migrate_decompress_threads(void)
{
MigrationState *s;

1
migration/options.h
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@ -52,6 +52,7 @@ int migrate_compress_threads(void);
int migrate_compress_wait_thread(void);
uint8_t migrate_cpu_throttle_increment(void);
uint8_t migrate_cpu_throttle_initial(void);
bool migrate_cpu_throttle_tailslow(void);
int migrate_decompress_threads(void);
uint8_t migrate_max_cpu_throttle(void);
int64_t migrate_max_postcopy_bandwidth(void);

3
migration/ram.c
View File

@ -711,10 +711,9 @@ static size_t save_page_header(PageSearchStatus *pss, QEMUFile *f,
static void mig_throttle_guest_down(uint64_t bytes_dirty_period,
uint64_t bytes_dirty_threshold)
{
MigrationState *s = migrate_get_current();
uint64_t pct_initial = migrate_cpu_throttle_initial();
uint64_t pct_increment = migrate_cpu_throttle_increment();
bool pct_tailslow = s->parameters.cpu_throttle_tailslow;
bool pct_tailslow = migrate_cpu_throttle_tailslow();
int pct_max = migrate_max_cpu_throttle();
uint64_t throttle_now = cpu_throttle_get_percentage();