diff options
| -rw-r--r-- | arch_init.c | 24 | ||||
| -rw-r--r-- | hmp.c | 2 | ||||
| -rw-r--r-- | include/migration/migration.h | 2 | ||||
| -rw-r--r-- | migration.c | 3 | ||||
| -rw-r--r-- | qapi-schema.json | 8 | ||||
| -rw-r--r-- | qmp-commands.hx | 1 |
6 files changed, 32 insertions, 8 deletions
diff --git a/arch_init.c b/arch_init.c index 1291bd2b3a..3a0d02eafa 100644 --- a/arch_init.c +++ b/arch_init.c @@ -183,6 +183,7 @@ int64_t xbzrle_cache_resize(int64_t new_size) /* accounting for migration statistics */ typedef struct AccountingInfo { uint64_t dup_pages; + uint64_t skipped_pages; uint64_t norm_pages; uint64_t iterations; uint64_t xbzrle_bytes; @@ -208,6 +209,16 @@ uint64_t dup_mig_pages_transferred(void) return acct_info.dup_pages; } +uint64_t skipped_mig_bytes_transferred(void) +{ + return acct_info.skipped_pages * TARGET_PAGE_SIZE; +} + +uint64_t skipped_mig_pages_transferred(void) +{ + return acct_info.skipped_pages; +} + uint64_t norm_mig_bytes_transferred(void) { return acct_info.norm_pages * TARGET_PAGE_SIZE; @@ -440,10 +451,15 @@ static int ram_save_block(QEMUFile *f, bool last_stage) bytes_sent = -1; if (is_zero_page(p)) { acct_info.dup_pages++; - bytes_sent = save_block_hdr(f, block, offset, cont, - RAM_SAVE_FLAG_COMPRESS); - qemu_put_byte(f, 0); - bytes_sent++; + if (!ram_bulk_stage) { + bytes_sent = save_block_hdr(f, block, offset, cont, + RAM_SAVE_FLAG_COMPRESS); + qemu_put_byte(f, 0); + bytes_sent++; + } else { + acct_info.skipped_pages++; + bytes_sent = 0; + } } else if (migrate_use_xbzrle()) { current_addr = block->offset + offset; bytes_sent = save_xbzrle_page(f, p, current_addr, block, @@ -173,6 +173,8 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict) info->ram->total >> 10); monitor_printf(mon, "duplicate: %" PRIu64 " pages\n", info->ram->duplicate); + monitor_printf(mon, "skipped: %" PRIu64 " pages\n", + info->ram->skipped); monitor_printf(mon, "normal: %" PRIu64 " pages\n", info->ram->normal); monitor_printf(mon, "normal bytes: %" PRIu64 " kbytes\n", diff --git a/include/migration/migration.h b/include/migration/migration.h index bb617fdacf..e2acec64c0 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -96,6 +96,8 @@ extern SaveVMHandlers savevm_ram_handlers; uint64_t dup_mig_bytes_transferred(void); uint64_t dup_mig_pages_transferred(void); +uint64_t skipped_mig_bytes_transferred(void); +uint64_t skipped_mig_pages_transferred(void); uint64_t norm_mig_bytes_transferred(void); uint64_t norm_mig_pages_transferred(void); uint64_t xbzrle_mig_bytes_transferred(void); diff --git a/migration.c b/migration.c index 185d11260d..7fb2147391 100644 --- a/migration.c +++ b/migration.c @@ -197,11 +197,11 @@ MigrationInfo *qmp_query_migrate(Error **errp) info->ram->remaining = ram_bytes_remaining(); info->ram->total = ram_bytes_total(); info->ram->duplicate = dup_mig_pages_transferred(); + info->ram->skipped = skipped_mig_pages_transferred(); info->ram->normal = norm_mig_pages_transferred(); info->ram->normal_bytes = norm_mig_bytes_transferred(); info->ram->dirty_pages_rate = s->dirty_pages_rate; - if (blk_mig_active()) { info->has_disk = true; info->disk = g_malloc0(sizeof(*info->disk)); @@ -227,6 +227,7 @@ MigrationInfo *qmp_query_migrate(Error **errp) info->ram->remaining = 0; info->ram->total = ram_bytes_total(); info->ram->duplicate = dup_mig_pages_transferred(); + info->ram->skipped = skipped_mig_pages_transferred(); info->ram->normal = norm_mig_pages_transferred(); info->ram->normal_bytes = norm_mig_bytes_transferred(); break; diff --git a/qapi-schema.json b/qapi-schema.json index 088f4e150f..6c4966be43 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -496,7 +496,9 @@ # # @total: total amount of bytes involved in the migration process # -# @duplicate: number of duplicate pages (since 1.2) +# @duplicate: number of duplicate (zero) pages (since 1.2) +# +# @skipped: number of skipped zero pages (since 1.5) # # @normal : number of normal pages (since 1.2) # @@ -509,8 +511,8 @@ ## { 'type': 'MigrationStats', 'data': {'transferred': 'int', 'remaining': 'int', 'total': 'int' , - 'duplicate': 'int', 'normal': 'int', 'normal-bytes': 'int', - 'dirty-pages-rate' : 'int' } } + 'duplicate': 'int', 'skipped': 'int', 'normal': 'int', + 'normal-bytes': 'int', 'dirty-pages-rate' : 'int' } } ## # @XBZRLECacheStats diff --git a/qmp-commands.hx b/qmp-commands.hx index 5e847b18d9..fdc40486f6 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -2445,6 +2445,7 @@ The main json-object contains the following: - "duplicate": number of pages filled entirely with the same byte (json-int) These are sent over the wire much more efficiently. + - "skipped": number of skipped zero pages (json-int) - "normal" : number of whole pages transfered. I.e. they were not sent as duplicate or xbzrle pages (json-int) - "normal-bytes" : number of bytes transferred in whole |