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memory: introduce total_dirty_pages to stat dirty pages 

introduce global var total_dirty_pages to stat dirty pages
along with memory_global_dirty_log_sync.

Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Hyman Huang(黄勇) 2021-07-20 23:19:16 +08:00 committed by Juan Quintela
parent 6fee3a1fd9
commit 4998a37e4b
2 changed files with 16 additions and 0 deletions
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9
include/exec/ram_addr.h
View File

@ -26,6 +26,8 @@
#include "exec/ramlist.h"
#include "exec/ramblock.h"
extern uint64_t total_dirty_pages;
/**
* clear_bmap_size: calculate clear bitmap size
*
@ -373,6 +375,10 @@ static inline void cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
qatomic_or(
&blocks[DIRTY_MEMORY_MIGRATION][idx][offset],
temp);
if (unlikely(
global_dirty_tracking & GLOBAL_DIRTY_DIRTY_RATE)) {
total_dirty_pages += ctpopl(temp);
}
}
if (tcg_enabled()) {
@ -403,6 +409,9 @@ static inline void cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
for (i = 0; i < len; i++) {
if (bitmap[i] != 0) {
c = leul_to_cpu(bitmap[i]);
if (unlikely(global_dirty_tracking & GLOBAL_DIRTY_DIRTY_RATE)) {
total_dirty_pages += ctpopl(c);
}
do {
j = ctzl(c);
c &= ~(1ul << j);

7
migration/dirtyrate.c
View File

@ -28,6 +28,13 @@
#include "sysemu/runstate.h"
#include "exec/memory.h"
/*
* total_dirty_pages is procted by BQL and is used
* to stat dirty pages during the period of two
* memory_global_dirty_log_sync
*/
uint64_t total_dirty_pages;
typedef struct DirtyPageRecord {
uint64_t start_pages;
uint64_t end_pages;