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[PATCH v5 1/2] memory: introduce total_dirty_pages to stat dirty pages
From: |
huangy81 |
Subject: |
[PATCH v5 1/2] memory: introduce total_dirty_pages to stat dirty pages |
Date: |
Fri, 16 Jul 2021 18:39:50 +0800 |
From: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
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>
---
include/exec/ram_addr.h | 4 ++++
migration/dirtyrate.c | 7 +++++++
2 files changed, 11 insertions(+)
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index 45c9132..e98d665 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -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
*
@@ -366,6 +368,7 @@ static inline void
cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
for (k = 0; k < nr; k++) {
if (bitmap[k]) {
unsigned long temp = leul_to_cpu(bitmap[k]);
+ total_dirty_pages += ctpopl(temp);
qatomic_or(&blocks[DIRTY_MEMORY_VGA][idx][offset], temp);
@@ -403,6 +406,7 @@ 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]);
+ total_dirty_pages += ctpopl(c);
do {
j = ctzl(c);
c &= ~(1ul << j);
diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c
index f92c4b4..17b3d2c 100644
--- a/migration/dirtyrate.c
+++ b/migration/dirtyrate.c
@@ -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;
--
1.8.3.1