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9ac78b6171
auto-converge and block migration currently do not play well together. During block migration the auto-converge logic detects that ram migration makes no progress and thus throttles down the vm until it nearly stalls completely. Avoid this by disabling the throttling logic during the bulk phase of the block migration. Cc: qemu-stable@nongnu.org Signed-off-by: Peter Lieven <pl@kamp.de> Message-Id: <1506421996-12513-1-git-send-email-pl@kamp.de> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
53 lines
993 B
C
53 lines
993 B
C
/*
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* QEMU live block migration
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*
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* Copyright IBM, Corp. 2009
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*
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* Authors:
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* Liran Schour <lirans@il.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef MIGRATION_BLOCK_H
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#define MIGRATION_BLOCK_H
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#ifdef CONFIG_LIVE_BLOCK_MIGRATION
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int blk_mig_active(void);
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int blk_mig_bulk_active(void);
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uint64_t blk_mig_bytes_transferred(void);
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uint64_t blk_mig_bytes_remaining(void);
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uint64_t blk_mig_bytes_total(void);
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#else
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static inline int blk_mig_active(void)
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{
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return false;
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}
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static inline int blk_mig_bulk_active(void)
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{
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return false;
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}
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static inline uint64_t blk_mig_bytes_transferred(void)
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{
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return 0;
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}
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static inline uint64_t blk_mig_bytes_remaining(void)
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{
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return 0;
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}
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static inline uint64_t blk_mig_bytes_total(void)
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{
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return 0;
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}
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#endif /* CONFIG_LIVE_BLOCK_MIGRATION */
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void migrate_set_block_enabled(bool value, Error **errp);
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#endif /* MIGRATION_BLOCK_H */
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