55 lines
1.8 KiB
Diff
55 lines
1.8 KiB
Diff
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From 17b0582ebba622afbd8f454bbee8141ed2785f13 Mon Sep 17 00:00:00 2001
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From: Chuan Zheng <zhengchuan@huawei.com>
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Date: Wed, 16 Sep 2020 14:21:58 +0800
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Subject: [PATCH] migration/dirtyrate: Add RamblockDirtyInfo to store sampled
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page info
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Add RamblockDirtyInfo to store sampled page info of each ramblock.
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Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
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Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Reviewed-by: David Edmondson <david.edmondson@oracle.com>
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Reviewed-by: Li Qiang <liq3ea@gmail.com>
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Message-Id: <1600237327-33618-4-git-send-email-zhengchuan@huawei.com>
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Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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---
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migration/dirtyrate.h | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h
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index 84ab9409ac..8707df852d 100644
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--- a/migration/dirtyrate.h
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+++ b/migration/dirtyrate.h
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@@ -19,10 +19,28 @@
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*/
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#define DIRTYRATE_DEFAULT_SAMPLE_PAGES 512
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+/*
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+ * Record ramblock idstr
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+ */
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+#define RAMBLOCK_INFO_MAX_LEN 256
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+
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struct DirtyRateConfig {
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uint64_t sample_pages_per_gigabytes; /* sample pages per GB */
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int64_t sample_period_seconds; /* time duration between two sampling */
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};
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+/*
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+ * Store dirtypage info for each ramblock.
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+ */
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+struct RamblockDirtyInfo {
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+ char idstr[RAMBLOCK_INFO_MAX_LEN]; /* idstr for each ramblock */
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+ uint8_t *ramblock_addr; /* base address of ramblock we measure */
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+ uint64_t ramblock_pages; /* ramblock size in TARGET_PAGE_SIZE */
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+ uint64_t *sample_page_vfn; /* relative offset address for sampled page */
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+ uint64_t sample_pages_count; /* count of sampled pages */
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+ uint64_t sample_dirty_count; /* count of dirty pages we measure */
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+ uint32_t *hash_result; /* array of hash result for sampled pages */
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+};
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+
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void *get_dirtyrate_thread(void *arg);
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#endif
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--
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2.27.0
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