On Sun, 2011-11-20 at 14:14 +0800, Lan, Tianyu wrote: > > OK. Thx. > > But fsync is too slow. I try to find a way to sync a range of file. > > Are there any solutions to meet my purpose? On Sun, 2011-11-20 at 08:23 +0200, Sasha Levin wrote: > fdatasync() is as good as it'll get. > > tbh, maybe we should just consider opening QCOW images with O_SYNC and > just get it over with? No, lets not do that. It's easier to improve the performance of correct code that doesn't use O_SYNC. Pekka -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
