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[PULL 12/26] migration/dirtyrate: Implement calculate_dirtyrate() functi
From: |
Dr. David Alan Gilbert (git) |
Subject: |
[PULL 12/26] migration/dirtyrate: Implement calculate_dirtyrate() function |
Date: |
Fri, 25 Sep 2020 13:06:41 +0100 |
From: Chuan Zheng <zhengchuan@huawei.com>
Implement calculate_dirtyrate() function.
Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
Signed-off-by: YanYing Zhuang <ann.zhuangyanying@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-Id: <1600237327-33618-11-git-send-email-zhengchuan@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
migration/dirtyrate.c | 45 +++++++++++++++++++++++++++++++++++++++++--
1 file changed, 43 insertions(+), 2 deletions(-)
diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c
index 20216c5f09..419b0e30ba 100644
--- a/migration/dirtyrate.c
+++ b/migration/dirtyrate.c
@@ -162,6 +162,21 @@ static void get_ramblock_dirty_info(RAMBlock *block,
strcpy(info->idstr, qemu_ram_get_idstr(block));
}
+static void free_ramblock_dirty_info(struct RamblockDirtyInfo *infos, int
count)
+{
+ int i;
+
+ if (!infos) {
+ return;
+ }
+
+ for (i = 0; i < count; i++) {
+ g_free(infos[i].sample_page_vfn);
+ g_free(infos[i].hash_result);
+ }
+ g_free(infos);
+}
+
static bool skip_sample_ramblock(RAMBlock *block)
{
/*
@@ -287,8 +302,34 @@ static bool compare_page_hash_info(struct
RamblockDirtyInfo *info,
static void calculate_dirtyrate(struct DirtyRateConfig config)
{
- /* todo */
- return;
+ struct RamblockDirtyInfo *block_dinfo = NULL;
+ int block_count = 0;
+ int64_t msec = 0;
+ int64_t initial_time;
+
+ rcu_register_thread();
+ reset_dirtyrate_stat();
+ rcu_read_lock();
+ initial_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
+ if (!record_ramblock_hash_info(&block_dinfo, config, &block_count)) {
+ goto out;
+ }
+ rcu_read_unlock();
+
+ msec = config.sample_period_seconds * 1000;
+ msec = set_sample_page_period(msec, initial_time);
+
+ rcu_read_lock();
+ if (!compare_page_hash_info(block_dinfo, block_count)) {
+ goto out;
+ }
+
+ update_dirtyrate(msec);
+
+out:
+ rcu_read_unlock();
+ free_ramblock_dirty_info(block_dinfo, block_count);
+ rcu_unregister_thread();
}
void *get_dirtyrate_thread(void *arg)
--
2.26.2
- [PULL 02/26] migration: Rework migrate_send_rp_req_pages() function, (continued)
- [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), 2020/09/25
- [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) <=
- [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
- [PULL 16/26] migration: increase max-bandwidth to 128 MiB/s (1 Gib/s), Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 17/26] migration/tls: save hostname into MigrationState, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 18/26] migration/tls: extract migration_tls_client_create for common-use, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 19/26] migration/tls: add tls_hostname into MultiFDSendParams, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 20/26] migration/tls: extract cleanup function for common-use, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 21/26] migration/tls: add support for multifd tls-handshake, Dr. David Alan Gilbert (git), 2020/09/25
- [PULL 22/26] migration/tls: add trace points for multifd-tls, Dr. David Alan Gilbert (git), 2020/09/25