xref: /qemu/include/sysemu/dirtyrate.h (revision a976a99a)
1 /*
2  * dirty page rate helper functions
3  *
4  * Copyright (c) 2022 CHINA TELECOM CO.,LTD.
5  *
6  * Authors:
7  *  Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
10  * See the COPYING file in the top-level directory.
11  */
12 
13 #ifndef QEMU_DIRTYRATE_H
14 #define QEMU_DIRTYRATE_H
15 
16 typedef struct VcpuStat {
17     int nvcpu; /* number of vcpu */
18     DirtyRateVcpu *rates; /* array of dirty rate for each vcpu */
19 } VcpuStat;
20 
21 int64_t vcpu_calculate_dirtyrate(int64_t calc_time_ms,
22                                  VcpuStat *stat,
23                                  unsigned int flag,
24                                  bool one_shot);
25 
26 void global_dirty_log_change(unsigned int flag,
27                              bool start);
28 #endif
29