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migration: Rename ram_counters to mig_stats 

migration_stats is just too long, and it is going to have more than
ram counters in the near future.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
master
Juan Quintela 2023-04-26 19:37:19 +02:00
parent 947701cc1a
commit aff3f6606d
6 changed files with 46 additions and 46 deletions
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2
migration/migration-stats.c
View File

@ -14,4 +14,4 @@
#include "qemu/stats64.h"
#include "migration-stats.h"
RAMStats ram_counters;
RAMStats mig_stats;

2
migration/migration-stats.h
View File

@ -36,6 +36,6 @@ typedef struct {
Stat64 transferred;
} RAMStats;
extern RAMStats ram_counters;
extern RAMStats mig_stats;
#endif

32
migration/migration.c
View File

@ -909,26 +909,26 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s)
size_t page_size = qemu_target_page_size();
info->ram = g_malloc0(sizeof(*info->ram));
info->ram->transferred = stat64_get(&ram_counters.transferred);
info->ram->transferred = stat64_get(&mig_stats.transferred);
info->ram->total = ram_bytes_total();
info->ram->duplicate = stat64_get(&ram_counters.zero_pages);
info->ram->duplicate = stat64_get(&mig_stats.zero_pages);
/* legacy value. It is not used anymore */
info->ram->skipped = 0;
info->ram->normal = stat64_get(&ram_counters.normal_pages);
info->ram->normal = stat64_get(&mig_stats.normal_pages);
info->ram->normal_bytes = info->ram->normal * page_size;
info->ram->mbps = s->mbps;
info->ram->dirty_sync_count =
stat64_get(&ram_counters.dirty_sync_count);
stat64_get(&mig_stats.dirty_sync_count);
info->ram->dirty_sync_missed_zero_copy =
stat64_get(&ram_counters.dirty_sync_missed_zero_copy);
stat64_get(&mig_stats.dirty_sync_missed_zero_copy);
info->ram->postcopy_requests =
stat64_get(&ram_counters.postcopy_requests);
stat64_get(&mig_stats.postcopy_requests);
info->ram->page_size = page_size;
info->ram->multifd_bytes = stat64_get(&ram_counters.multifd_bytes);
info->ram->multifd_bytes = stat64_get(&mig_stats.multifd_bytes);
info->ram->pages_per_second = s->pages_per_second;
info->ram->precopy_bytes = stat64_get(&ram_counters.precopy_bytes);
info->ram->downtime_bytes = stat64_get(&ram_counters.downtime_bytes);
info->ram->postcopy_bytes = stat64_get(&ram_counters.postcopy_bytes);
info->ram->precopy_bytes = stat64_get(&mig_stats.precopy_bytes);
info->ram->downtime_bytes = stat64_get(&mig_stats.downtime_bytes);
info->ram->postcopy_bytes = stat64_get(&mig_stats.postcopy_bytes);
if (migrate_xbzrle()) {
info->xbzrle_cache = g_malloc0(sizeof(*info->xbzrle_cache));
@ -960,7 +960,7 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s)
if (s->state != MIGRATION_STATUS_COMPLETED) {
info->ram->remaining = ram_bytes_remaining();
info->ram->dirty_pages_rate =
stat64_get(&ram_counters.dirty_pages_rate);
stat64_get(&mig_stats.dirty_pages_rate);
}
}
@ -1613,10 +1613,10 @@ static bool migrate_prepare(MigrationState *s, bool blk, bool blk_inc,
migrate_init(s);
/*
* set ram_counters compression_counters memory to zero for a
* set mig_stats compression_counters memory to zero for a
* new migration
*/
memset(&ram_counters, 0, sizeof(ram_counters));
memset(&mig_stats, 0, sizeof(mig_stats));
memset(&compression_counters, 0, sizeof(compression_counters));
return true;
@ -2627,7 +2627,7 @@ static MigThrError migration_detect_error(MigrationState *s)
static uint64_t migration_total_bytes(MigrationState *s)
{
return qemu_file_total_transferred(s->to_dst_file) +
stat64_get(&ram_counters.multifd_bytes);
stat64_get(&mig_stats.multifd_bytes);
}
static void migration_calculate_complete(MigrationState *s)
@ -2691,10 +2691,10 @@ static void migration_update_counters(MigrationState *s,
* if we haven't sent anything, we don't want to
* recalculate. 10000 is a small enough number for our purposes
*/
if (stat64_get(&ram_counters.dirty_pages_rate) &&
if (stat64_get(&mig_stats.dirty_pages_rate) &&
transferred > 10000) {
s->expected_downtime =
stat64_get(&ram_counters.dirty_bytes_last_sync) / bandwidth;
stat64_get(&mig_stats.dirty_bytes_last_sync) / bandwidth;
}
qemu_file_reset_rate_limit(s->to_dst_file);

6
migration/multifd.c
View File

@ -434,8 +434,8 @@ static int multifd_send_pages(QEMUFile *f)
transferred = ((uint64_t) pages->num) * p->page_size + p->packet_len;
qemu_file_acct_rate_limit(f, transferred);
qemu_mutex_unlock(&p->mutex);
stat64_add(&ram_counters.transferred, transferred);
stat64_add(&ram_counters.multifd_bytes, transferred);
stat64_add(&mig_stats.transferred, transferred);
stat64_add(&mig_stats.multifd_bytes, transferred);
qemu_sem_post(&p->sem);
return 1;
@ -577,7 +577,7 @@ static int multifd_zero_copy_flush(QIOChannel *c)
return -1;
}
if (ret == 1) {
stat64_add(&ram_counters.dirty_sync_missed_zero_copy, 1);
stat64_add(&mig_stats.dirty_sync_missed_zero_copy, 1);
}
return ret;

48
migration/ram.c
View File

@ -464,13 +464,13 @@ uint64_t ram_bytes_remaining(void)
void ram_transferred_add(uint64_t bytes)
{
if (runstate_is_running()) {
stat64_add(&ram_counters.precopy_bytes, bytes);
stat64_add(&mig_stats.precopy_bytes, bytes);
} else if (migration_in_postcopy()) {
stat64_add(&ram_counters.postcopy_bytes, bytes);
stat64_add(&mig_stats.postcopy_bytes, bytes);
} else {
stat64_add(&ram_counters.downtime_bytes, bytes);
stat64_add(&mig_stats.downtime_bytes, bytes);
}
stat64_add(&ram_counters.transferred, bytes);
stat64_add(&mig_stats.transferred, bytes);
}
struct MigrationOps {
@ -744,7 +744,7 @@ void mig_throttle_counter_reset(void)
rs->time_last_bitmap_sync = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
rs->num_dirty_pages_period = 0;
rs->bytes_xfer_prev = stat64_get(&ram_counters.transferred);
rs->bytes_xfer_prev = stat64_get(&mig_stats.transferred);
}
/**
@ -764,7 +764,7 @@ static void xbzrle_cache_zero_page(RAMState *rs, ram_addr_t current_addr)
/* We don't care if this fails to allocate a new cache page
* as long as it updated an old one */
cache_insert(XBZRLE.cache, current_addr, XBZRLE.zero_target_page,
stat64_get(&ram_counters.dirty_sync_count));
stat64_get(&mig_stats.dirty_sync_count));
}
#define ENCODING_FLAG_XBZRLE 0x1
@ -790,7 +790,7 @@ static int save_xbzrle_page(RAMState *rs, PageSearchStatus *pss,
int encoded_len = 0, bytes_xbzrle;
uint8_t *prev_cached_page;
QEMUFile *file = pss->pss_channel;
uint64_t generation = stat64_get(&ram_counters.dirty_sync_count);
uint64_t generation = stat64_get(&mig_stats.dirty_sync_count);
if (!cache_is_cached(XBZRLE.cache, current_addr, generation)) {
xbzrle_counters.cache_miss++;
@ -1118,8 +1118,8 @@ uint64_t ram_pagesize_summary(void)
uint64_t ram_get_total_transferred_pages(void)
{
return stat64_get(&ram_counters.normal_pages) +
stat64_get(&ram_counters.zero_pages) +
return stat64_get(&mig_stats.normal_pages) +
stat64_get(&mig_stats.zero_pages) +
compression_counters.pages + xbzrle_counters.pages;
}
@ -1129,7 +1129,7 @@ static void migration_update_rates(RAMState *rs, int64_t end_time)
double compressed_size;
/* calculate period counters */
stat64_set(&ram_counters.dirty_pages_rate,
stat64_set(&mig_stats.dirty_pages_rate,
rs->num_dirty_pages_period * 1000 /
(end_time - rs->time_last_bitmap_sync));
@ -1180,7 +1180,7 @@ static void migration_trigger_throttle(RAMState *rs)
{
uint64_t threshold = migrate_throttle_trigger_threshold();
uint64_t bytes_xfer_period =
stat64_get(&ram_counters.transferred) - rs->bytes_xfer_prev;
stat64_get(&mig_stats.transferred) - rs->bytes_xfer_prev;
uint64_t bytes_dirty_period = rs->num_dirty_pages_period * TARGET_PAGE_SIZE;
uint64_t bytes_dirty_threshold = bytes_xfer_period * threshold / 100;
@ -1209,7 +1209,7 @@ static void migration_bitmap_sync(RAMState *rs)
RAMBlock *block;
int64_t end_time;
stat64_add(&ram_counters.dirty_sync_count, 1);
stat64_add(&mig_stats.dirty_sync_count, 1);
if (!rs->time_last_bitmap_sync) {
rs->time_last_bitmap_sync = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
@ -1223,7 +1223,7 @@ static void migration_bitmap_sync(RAMState *rs)
RAMBLOCK_FOREACH_NOT_IGNORED(block) {
ramblock_sync_dirty_bitmap(rs, block);
}
stat64_set(&ram_counters.dirty_bytes_last_sync, ram_bytes_remaining());
stat64_set(&mig_stats.dirty_bytes_last_sync, ram_bytes_remaining());
}
qemu_mutex_unlock(&rs->bitmap_mutex);
@ -1243,10 +1243,10 @@ static void migration_bitmap_sync(RAMState *rs)
/* reset period counters */
rs->time_last_bitmap_sync = end_time;
rs->num_dirty_pages_period = 0;
rs->bytes_xfer_prev = stat64_get(&ram_counters.transferred);
rs->bytes_xfer_prev = stat64_get(&mig_stats.transferred);
}
if (migrate_events()) {
uint64_t generation = stat64_get(&ram_counters.dirty_sync_count);
uint64_t generation = stat64_get(&mig_stats.dirty_sync_count);
qapi_event_send_migration_pass(generation);
}
}
@ -1320,7 +1320,7 @@ static int save_zero_page(PageSearchStatus *pss, QEMUFile *f, RAMBlock *block,
int len = save_zero_page_to_file(pss, f, block, offset);
if (len) {
stat64_add(&ram_counters.zero_pages, 1);
stat64_add(&mig_stats.zero_pages, 1);
ram_transferred_add(len);
return 1;
}
@ -1357,9 +1357,9 @@ static bool control_save_page(PageSearchStatus *pss, RAMBlock *block,
}
if (bytes_xmit > 0) {
stat64_add(&ram_counters.normal_pages, 1);
stat64_add(&mig_stats.normal_pages, 1);
} else if (bytes_xmit == 0) {
stat64_add(&ram_counters.zero_pages, 1);
stat64_add(&mig_stats.zero_pages, 1);
}
return true;
@ -1391,7 +1391,7 @@ static int save_normal_page(PageSearchStatus *pss, RAMBlock *block,
qemu_put_buffer(file, buf, TARGET_PAGE_SIZE);
}
ram_transferred_add(TARGET_PAGE_SIZE);
stat64_add(&ram_counters.normal_pages, 1);
stat64_add(&mig_stats.normal_pages, 1);
return 1;
}
@ -1447,7 +1447,7 @@ static int ram_save_multifd_page(QEMUFile *file, RAMBlock *block,
if (multifd_queue_page(file, block, offset) < 0) {
return -1;
}
stat64_add(&ram_counters.normal_pages, 1);
stat64_add(&mig_stats.normal_pages, 1);
return 1;
}
@ -1486,7 +1486,7 @@ update_compress_thread_counts(const CompressParam *param, int bytes_xmit)
ram_transferred_add(bytes_xmit);
if (param->zero_page) {
stat64_add(&ram_counters.zero_pages, 1);
stat64_add(&mig_stats.zero_pages, 1);
return;
}
@ -2179,7 +2179,7 @@ int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len)
RAMBlock *ramblock;
RAMState *rs = ram_state;
stat64_add(&ram_counters.postcopy_requests, 1);
stat64_add(&mig_stats.postcopy_requests, 1);
RCU_READ_LOCK_GUARD();
if (!rbname) {
@ -2634,9 +2634,9 @@ void acct_update_position(QEMUFile *f, size_t size, bool zero)
uint64_t pages = size / TARGET_PAGE_SIZE;
if (zero) {
stat64_add(&ram_counters.zero_pages, pages);
stat64_add(&mig_stats.zero_pages, pages);
} else {
stat64_add(&ram_counters.normal_pages, pages);
stat64_add(&mig_stats.normal_pages, pages);
ram_transferred_add(size);
qemu_file_credit_transfer(f, size);
}

2
migration/savevm.c
View File

@ -1622,7 +1622,7 @@ static int qemu_savevm_state(QEMUFile *f, Error **errp)
}
migrate_init(ms);
memset(&ram_counters, 0, sizeof(ram_counters));
memset(&mig_stats, 0, sizeof(mig_stats));
memset(&compression_counters, 0, sizeof(compression_counters));
ms->to_dst_file = f;