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migration/dirtyrate: Add dirtyrate statistics series functions

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Add dirtyrate statistics functions to record/update dirtyrate info.

Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-Id: <1600237327-33618-5-git-send-email-zhengchuan@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Huawei Technologies Co., Ltd 2020-09-16 14:21:59 +08:00 committed by Euler Robot
parent 4c49112057
commit d239c23ed1
1 changed files with 93 additions and 0 deletions
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migration-dirtyrate-Add-dirtyrate-statistics-series-.patch Normal file
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@ -0,0 +1,93 @@
From d1340703e127c02e9a586143039507ba10d73cfb Mon Sep 17 00:00:00 2001
From: Chuan Zheng <zhengchuan@huawei.com>
Date: Wed, 16 Sep 2020 14:21:59 +0800
Subject: [PATCH] migration/dirtyrate: Add dirtyrate statistics series
functions
Add dirtyrate statistics functions to record/update dirtyrate info.
Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-Id: <1600237327-33618-5-git-send-email-zhengchuan@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
migration/dirtyrate.c | 32 ++++++++++++++++++++++++++++++++
migration/dirtyrate.h | 12 ++++++++++++
2 files changed, 44 insertions(+)
diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c
index 44a60bf10d..cbb323d6ec 100644
--- a/migration/dirtyrate.c
+++ b/migration/dirtyrate.c
@@ -23,6 +23,7 @@
#include "dirtyrate.h"
static int CalculatingState = DIRTY_RATE_STATUS_UNSTARTED;
+static struct DirtyRateStat DirtyStat;
static int dirtyrate_set_state(int *state, int old_state, int new_state)
{
@@ -34,6 +35,37 @@ static int dirtyrate_set_state(int *state, int old_state, int new_state)
}
}
+static void reset_dirtyrate_stat(void)
+{
+ DirtyStat.total_dirty_samples = 0;
+ DirtyStat.total_sample_count = 0;
+ DirtyStat.total_block_mem_MB = 0;
+ DirtyStat.dirty_rate = -1;
+ DirtyStat.start_time = 0;
+ DirtyStat.calc_time = 0;
+}
+
+static void update_dirtyrate_stat(struct RamblockDirtyInfo *info)
+{
+ DirtyStat.total_dirty_samples += info->sample_dirty_count;
+ DirtyStat.total_sample_count += info->sample_pages_count;
+ /* size of total pages in MB */
+ DirtyStat.total_block_mem_MB += (info->ramblock_pages *
+ TARGET_PAGE_SIZE) >> 20;
+}
+
+static void update_dirtyrate(uint64_t msec)
+{
+ uint64_t dirtyrate;
+ uint64_t total_dirty_samples = DirtyStat.total_dirty_samples;
+ uint64_t total_sample_count = DirtyStat.total_sample_count;
+ uint64_t total_block_mem_MB = DirtyStat.total_block_mem_MB;
+
+ dirtyrate = total_dirty_samples * total_block_mem_MB *
+ 1000 / (total_sample_count * msec);
+
+ DirtyStat.dirty_rate = dirtyrate;
+}
static void calculate_dirtyrate(struct DirtyRateConfig config)
{
diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h
index 8707df852d..312debca6f 100644
--- a/migration/dirtyrate.h
+++ b/migration/dirtyrate.h
@@ -42,5 +42,17 @@ struct RamblockDirtyInfo {
uint32_t *hash_result; /* array of hash result for sampled pages */
};
+/*
+ * Store calculation statistics for each measure.
+ */
+struct DirtyRateStat {
+ uint64_t total_dirty_samples; /* total dirty sampled page */
+ uint64_t total_sample_count; /* total sampled pages */
+ uint64_t total_block_mem_MB; /* size of total sampled pages in MB */
+ int64_t dirty_rate; /* dirty rate in MB/s */
+ int64_t start_time; /* calculation start time in units of second */
+ int64_t calc_time; /* time duration of two sampling in units of second */
+};
+
void *get_dirtyrate_thread(void *arg);
#endif
--
2.27.0