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79 lines
2.7 KiB
79 lines
2.7 KiB
1 year ago
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From b88c51c4b02639e28da73143b1da7bd3d6706ce5 Mon Sep 17 00:00:00 2001
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From: Juan Quintela <quintela@redhat.com>
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Date: Thu, 2 Mar 2023 10:29:51 +0100
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Subject: [PATCH 46/56] migration: Create migrate_cpu_throttle_tailslow()
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function
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Peter Xu <peterx@redhat.com>
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RH-MergeRequest: 162: migration: Pretty failures for postcopy on unsupported memory types
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RH-Bugzilla: 2057267
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RH-Acked-by: Leonardo Brás <leobras@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: quintela1 <quintela@redhat.com>
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RH-Commit: [45/50] e93e96392405c60f75abbf288e4fddb191bbc996 (peterx/qemu-kvm)
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Signed-off-by: Juan Quintela <quintela@redhat.com>
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Reviewed-by: Fabiano Rosas <farosas@suse.de>
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(cherry picked from commit 873f674c559e3162a6e6e92994301d400c5cc873)
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Signed-off-by: Peter Xu <peterx@redhat.com>
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---
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migration/options.c | 9 +++++++++
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migration/options.h | 1 +
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migration/ram.c | 3 +--
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3 files changed, 11 insertions(+), 2 deletions(-)
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diff --git a/migration/options.c b/migration/options.c
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index 31435d2b45..615534c151 100644
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--- a/migration/options.c
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+++ b/migration/options.c
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@@ -527,6 +527,15 @@ uint8_t migrate_cpu_throttle_initial(void)
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return s->parameters.cpu_throttle_initial;
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}
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+bool migrate_cpu_throttle_tailslow(void)
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+{
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+ MigrationState *s;
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+
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+ s = migrate_get_current();
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+
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+ return s->parameters.cpu_throttle_tailslow;
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+}
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+
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int migrate_decompress_threads(void)
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{
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MigrationState *s;
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diff --git a/migration/options.h b/migration/options.h
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index 49b29bdafd..99f6bbd7a1 100644
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--- a/migration/options.h
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+++ b/migration/options.h
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@@ -52,6 +52,7 @@ int migrate_compress_threads(void);
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int migrate_compress_wait_thread(void);
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uint8_t migrate_cpu_throttle_increment(void);
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uint8_t migrate_cpu_throttle_initial(void);
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+bool migrate_cpu_throttle_tailslow(void);
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int migrate_decompress_threads(void);
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uint8_t migrate_max_cpu_throttle(void);
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int64_t migrate_max_postcopy_bandwidth(void);
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diff --git a/migration/ram.c b/migration/ram.c
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index 5645745a42..01356f60a4 100644
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--- a/migration/ram.c
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+++ b/migration/ram.c
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@@ -711,10 +711,9 @@ static size_t save_page_header(PageSearchStatus *pss, QEMUFile *f,
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static void mig_throttle_guest_down(uint64_t bytes_dirty_period,
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uint64_t bytes_dirty_threshold)
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{
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- MigrationState *s = migrate_get_current();
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uint64_t pct_initial = migrate_cpu_throttle_initial();
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uint64_t pct_increment = migrate_cpu_throttle_increment();
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- bool pct_tailslow = s->parameters.cpu_throttle_tailslow;
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+ bool pct_tailslow = migrate_cpu_throttle_tailslow();
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int pct_max = migrate_max_cpu_throttle();
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uint64_t throttle_now = cpu_throttle_get_percentage();
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--
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2.39.1
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