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[PULL 05/26] migration/dirtyrate: Add RamblockDirtyInfo to store sampled
From: |
Dr. David Alan Gilbert (git) |
Subject: |
[PULL 05/26] migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info |
Date: |
Fri, 25 Sep 2020 13:06:34 +0100 |
From: Chuan Zheng <zhengchuan@huawei.com>
Add RamblockDirtyInfo to store sampled page info of each ramblock.
Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-Id: <1600237327-33618-4-git-send-email-zhengchuan@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
migration/dirtyrate.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h
index 84ab9409ac..8707df852d 100644
--- a/migration/dirtyrate.h
+++ b/migration/dirtyrate.h
@@ -19,10 +19,28 @@
*/
#define DIRTYRATE_DEFAULT_SAMPLE_PAGES 512
+/*
+ * Record ramblock idstr
+ */
+#define RAMBLOCK_INFO_MAX_LEN 256
+
struct DirtyRateConfig {
uint64_t sample_pages_per_gigabytes; /* sample pages per GB */
int64_t sample_period_seconds; /* time duration between two sampling */
};
+/*
+ * Store dirtypage info for each ramblock.
+ */
+struct RamblockDirtyInfo {
+ char idstr[RAMBLOCK_INFO_MAX_LEN]; /* idstr for each ramblock */
+ uint8_t *ramblock_addr; /* base address of ramblock we measure */
+ uint64_t ramblock_pages; /* ramblock size in TARGET_PAGE_SIZE */
+ uint64_t *sample_page_vfn; /* relative offset address for sampled page */
+ uint64_t sample_pages_count; /* count of sampled pages */
+ uint64_t sample_dirty_count; /* count of dirty pages we measure */
+ uint32_t *hash_result; /* array of hash result for sampled pages */
+};
+
void *get_dirtyrate_thread(void *arg);
#endif
--
2.26.2
- [PULL 00/26] migration and friends queue, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 01/26] migration: Properly destroy variables on incoming side, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 02/26] migration: Rework migrate_send_rp_req_pages() function, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 04/26] migration/dirtyrate: add DirtyRateStatus to denote calculation status, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 03/26] migration/dirtyrate: setup up query-dirtyrate framwork, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 05/26] migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info,
Dr. David Alan Gilbert (git) <=
- [PULL 06/26] migration/dirtyrate: Add dirtyrate statistics series functions, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 07/26] migration/dirtyrate: move RAMBLOCK_FOREACH_MIGRATABLE into ram.h, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 08/26] migration/dirtyrate: Record hash results for each sampled page, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 09/26] migration/dirtyrate: Compare page hash results for recorded sampled page, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 10/26] migration/dirtyrate: skip sampling ramblock with size below MIN_RAMBLOCK_SIZE, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 11/26] migration/dirtyrate: Implement set_sample_page_period() and is_sample_period_valid(), Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 12/26] migration/dirtyrate: Implement calculate_dirtyrate() function, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 13/26] migration/dirtyrate: Implement qmp_cal_dirty_rate()/qmp_get_dirty_rate() function, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 14/26] migration/dirtyrate: Add trace_calls to make it easier to debug, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 15/26] migration: Truncate state file in xen-save-devices-state, Dr. David Alan Gilbert (git), 2020/09/25