[CRIU] [RFC 3/3] mem: Start using pagemap cache, v2

[Cyrill Gorcunov]

On Fri, Feb 14, 2014 at 12:04:03PM +0400, Pavel Emelyanov wrote:
> 
> Can you provide 6 numbers, please.
> 
> Frozen times for your old algo, this algo and no-cache
> on big number of small vmas and mixture of several small
> and several huge (more than 2Mb) vmas?

1024 VMAs 40K each
------------------

no-cache			straight-2M		aligned-2M

freezing_time: 324		freezing_time: 179	freezing_time: 290
frozen_time: 28393		frozen_time: 27171	frozen_time: 30496
memdump_time: 4061		memdump_time: 587	memdump_time: 877
memwrite_time: 551		memwrite_time: 595	memwrite_time: 701
pages_scanned: 13487		pages_scanned: 13487	pages_scanned: 13487
pages_skipped_parent: 0		pages_skipped_parent: 0	pages_skipped_parent: 0
pages_written: 63		pages_written: 63	pages_written: 63
irmap_resolve: 0		irmap_resolve: 0	irmap_resolve: 0

3 VMA 13653K each
-----------------

no-cache			straight-2M		aligned-2M

freezing_time: 274		freezing_time: 339	freezing_time: 339
frozen_time: 11388		frozen_time: 10071	frozen_time: 10071
memdump_time: 344		memdump_time: 409	memdump_time: 409
memwrite_time: 592		memwrite_time: 856	memwrite_time: 856
pages_scanned: 13489		pages_scanned: 13489	pages_scanned: 13489
pages_skipped_parent: 0		pages_skipped_parent: 0	pages_skipped_parent: 0
pages_written: 63		pages_written: 63	pages_written: 63
irmap_resolve: 0		irmap_resolve: 0	irmap_resolve: 0

The mixture of sizes will come soon.