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[Qemu-devel] FW: about the bdrv_invalidate_cache_all()
From: |
Li, Liang Z |
Subject: |
[Qemu-devel] FW: about the bdrv_invalidate_cache_all() |
Date: |
Wed, 5 Aug 2015 15:21:24 +0000 |
Hi Kevin & Juan,
I found the function bdrv_invalidate_cache_all() in the
process_incoming_migration_co() takes more the 10ms when doing live migration
with shared storage, which prolong the service down time.
The bdrv_invalidate_cache_all() is needed when doing the live migration with
'-b' option. For live migration with share storage, such as nfs, is it still
needed? If so, could please tell me why? If not, I think we can do some
optimization.
Liang
- [Qemu-devel] FW: about the bdrv_invalidate_cache_all(),
Li, Liang Z <=