Pavel Emelyanov cf01381cbd mem: Drain memory from parasite before dumping it into file ... Currently we dump pages directly from parasite into image files. This is bad for several reasons: 1. We cannot use any more-or-less custom format for pages easily, since parasite code cannot be linked with any libraries; 2. We will not be able to optimize migration with preliminary memory migration (a.k.a. iterative migration) with it -- if we send pages from parasite over network we are not able to let the task we dump continue running. That said, what is done is -- pages from target task are put into a page-pipe in one go, then (not in this patch) parasite can be released and we can do with pages whatever we want. For now pages are just spliced from pipe into image file. Some numbers: In order to drain 1Gb of memory from task we need 1.5M of shared map in args (for iovecs) and 4 pipes (8 descriptors) each referencing 128Mb of pages, which int turn requires 4 x 640K chunks of sequential kernel memory (for pipe_buffer). Not that big I guess. Signed-off-by: Pavel Emelyanov <xemul@parallels.com>		2013-03-01 20:13:11 +04:00
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gen-offsets.sh	parasite: Make parasite arguments variable size	2013-03-01 20:11:28 +04:00
log-simple.c	print_hex_l: don't print more than 8 hex digits on a 32-bit machine	2013-01-18 11:41:40 +04:00
Makefile	pie: Pass CR_NOGLIBC in pie/Makefile	2013-02-27 15:43:34 +04:00
parasite.c	mem: Drain memory from parasite before dumping it into file	2013-03-01 20:13:11 +04:00
pie.lds.S.in	parasite: Make parasite arguments variable size	2013-03-01 20:11:28 +04:00
restorer.c	pie: Pass CR_NOGLIBC in pie/Makefile	2013-02-27 15:43:34 +04:00
util-net.c	make: pie -- Switch to a new scheme	2013-02-18 18:10:45 +04:00