Pavel Emelyanov 505652ef86 page-server: Fine grained corking control (v3) ...

When live migrating a container with large amount of processes
inside the time to do page-server-ed dump may be up to 10 times
slower than for the local dump.

The delay is always introduced in the open_page_server_xfer()
when criu negotiates the has_parent bit on the 2nd task. This
likely happens because of the Nagel algo taking place -- after
the write() of the OPEN2 command happened kernel delays this
command sending waiting for more data.

v2:
Fix this by turning on CORK option on memory transfer sockets
on send side, and NODELAY one once on urgent data. Receive
side is always NODELAY-ed. According to Alexey Kuznetsov this
is the best mode ever for such type of transfers.

v3:
Push packets in pre-dump's check_parent_server_xfer too.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Andrew Vagin <avagin@odin.com>

Conflicts:
	include/util.h
	util.c

2015-11-11 19:13:57 +03:00

..

asm-generic

Use run-time page size where it matters

2015-04-22 15:39:05 +03:00

action-scripts.h

scripts: Add ACT_MAX limit and make @action_names being const

2014-10-27 21:30:37 +04:00

aio.h

aio: Restore AIO contexts

2014-12-26 18:13:40 +03:00

bfd.h

bfd: Don't leak image-open flags into bfdopen

2015-03-16 15:58:14 +03:00

bug.h

bug: Include <stdbool.h>

2014-02-21 16:27:16 +04:00

cgroup.h

cg: add --cgroup-root option

2014-08-19 12:58:36 +04:00

compiler.h

include/compiler.h: Cleanup

2013-02-15 17:34:38 +04:00

config-base.h

config-base: Add F_SETPIPE_SZ/F_GETPIPE_SZ

2014-02-18 12:53:09 +04:00

cpu.h

cpuinfo: Add "cpuinfo [dump|check]" commands, v2

2014-10-03 13:26:58 +04:00

cr_options.h

opts: Allo to specify the maximum size of ghost files

2015-08-10 16:51:11 +03:00

cr-errno.h

cr_errno: move cr_err helpers into cr_errno.h

2014-12-22 13:50:45 +03:00

cr-service-const.h

service: allocate buffers for messages dinamically (v2)

2015-04-21 16:09:09 +03:00

cr-service.h

scripts: Use numeric action val in RPC notifications

2014-09-05 13:48:27 +04:00

cr-show.h

img: Introduce the struct cr_img

2014-09-30 21:48:13 +04:00

criu-log.h

criu: print correct errno messages from pr_perror()

2015-02-13 15:14:44 +03:00

criu-plugin.h

plugin: Explicit assign plugin hooks

2014-09-19 17:39:06 +04:00

crtools.h

security: create separate security.h header

2015-02-10 16:53:54 +03:00

err.h

headers: Add err.h header

2013-04-02 20:27:51 +04:00

errno.h

headers: Move ERESTART codes to errno.h

2013-11-14 22:22:21 +04:00

eventfd.h

anon-inode: Don't readlink fd/fd multiple times

2014-02-02 22:14:29 +04:00

eventpoll.h

anon-inode: Don't readlink fd/fd multiple times

2014-02-02 22:14:29 +04:00

fcntl.h

fsnotify: Open handle with O_PATH, v2

2014-02-25 23:38:35 +04:00

fifo.h

img: Rename fdset -> imgset

2014-09-30 21:48:10 +04:00

file-ids.h

kcmp: Stop showing ids tree

2015-08-18 18:17:31 +03:00

file-lock.h

locks: Don't dump locks in per-task manner (v3)

2014-09-02 17:44:46 +04:00

files-reg.h

files-reg: Rework strip_deleted helper

2015-08-21 21:26:01 +03:00

files.h

service: add ability to set inherit file descriptors (v3)

2015-03-30 13:09:25 +03:00

fs-magic.h

remap: add a dead pid /proc remap

2014-09-19 17:42:48 +04:00

fsnotify.h

fsnotify: merge fanotify mark image into fanotify image (v3)

2014-09-03 20:51:39 +04:00

image-desc.h

add netns protobuf entry and image, also add conf to net device entry

2015-04-09 18:59:17 +03:00

image.h

Add restoring of unnamed unix sockets.

2015-07-29 17:53:36 +03:00

imgset.h

img: Introduce the struct cr_img

2014-09-30 21:48:13 +04:00

inet_diag.h

headers: Unify include guards (in comments) and a few fixes

2012-12-25 22:40:24 +04:00

ipc_ns.h

ns: Factor out namespace switching call

2014-09-30 21:54:11 +04:00

irmap.h

irmap: Get root mntfd before releasing tasks on predump

2014-10-01 09:37:04 +04:00

kcmp-ids.h

kcmp: Stop showing ids tree

2015-08-18 18:17:31 +03:00

kcmp.h

headers: Move kcmp_type to kcmp.h

2013-11-14 22:13:59 +04:00

kerndat.h

kerndat: Introduce task_size variable

2015-08-03 17:14:15 +03:00

libnetlink.h

nlk: Add error callback to do_rtnl_req

2015-01-22 18:54:37 +03:00

list.h

criu: Several formatting fixes

2014-01-14 09:33:19 +04:00

lock.h

atomic: Use atomic_read instead of atomic_get

2013-08-16 19:37:06 +04:00

log.h

pie: add printf-like functionality to simple_buf

2015-06-16 12:17:35 +03:00

lsm.h

Fix antique style declarations in lsm.[ch]

2015-06-02 15:21:10 +03:00

magic.h

img: Introduce v1.1 images (v2)

2015-04-14 15:18:32 +03:00

mem.h

mem: Move shmem preparation routine and rename

2014-02-03 23:34:12 +04:00

mman.h

headers: Move MADV definitions to own mman.h

2013-11-14 22:48:30 +04:00

mount.h

mnt: Export __open_mountpoint

2015-10-22 17:13:31 +04:00

namespaces.h

revert 246367e4e483 "add walk_all flag to walk_namespaces"

2015-04-14 22:34:40 +03:00

net.h

Allow the veth-pair option to specify a bridge

2015-01-12 14:54:18 +03:00

netfilter.h

headers: Add extern specificator to functions

2013-11-15 17:00:58 +04:00

netlink_diag.h

headers: Add missing __CR_ at last endif

2013-11-15 16:59:57 +04:00

packet_diag.h

headers: Unify include guards (in comments) and a few fixes

2012-12-25 22:40:24 +04:00

page-pipe.h

page-pipe: split dumping memory on chunks (v3)

2014-02-10 15:06:39 +04:00

page-read.h

page-read: Explicitly mark ENOENT with return code

2015-03-13 14:42:11 +03:00

page-xfer.h

mem: check existence of parent images before dumping pages (v2)

2014-11-29 19:32:40 +03:00

pagemap-cache.h

Use run-time page size where it matters

2015-04-22 15:39:05 +03:00

parasite-syscall.h

vdso: Fix misprint in ifdef

2015-06-08 23:34:58 +03:00

parasite.h

tty: Rework tty_driver structure

2015-04-02 20:20:01 +03:00

pid.h

headers: Add missing __CR_ at last endif

2013-11-15 16:59:57 +04:00

pipes.h

collect: Shorten common images collecting code

2013-08-21 03:52:18 +04:00

plugin.h

plugin: Rework plugins API, v2

2014-09-03 20:48:36 +04:00

posix-timer.h

posix-timers: Helper for freeing proc parsed data

2014-04-17 12:01:02 +04:00

prctl.h

seccomp: add initial support for SECCOMP_MODE_STRICT

2015-06-24 17:38:32 +03:00

proc_parse.h

mount: Move mount_info and ext_mount to mount.h

2015-08-13 17:16:47 +03:00

protobuf-desc.h

add netns protobuf entry and image, also add conf to net device entry

2015-04-09 18:59:17 +03:00

protobuf.h

img: Remove O_OPT and COLLECT_OPTIONAL

2015-03-13 14:42:01 +03:00

pstree.h

pstree_item: Keep has_seccomp field on rst_info tail

2015-07-14 14:01:48 +03:00

ptrace.h

ptrace: split task_seize into seize_catch_task and seize_wait_task

2015-08-07 13:47:11 +03:00

rbtree.h

x86: moved x86-specific files into the directory arch/x86.

2013-01-09 17:02:47 +04:00

restorer.h

restorer: Replace most hard-coded TASK_SIZE use

2015-08-03 17:14:17 +03:00

rst_info.h

restore: fix race in calculation of a number of zombies

2015-08-03 17:12:10 +03:00

rst-malloc.h

rst: Lock rst memory allocations earlier

2015-07-14 14:00:27 +03:00

seccomp.h

don't assume the kernel has CONFIG_SECCOMP

2015-07-13 14:50:35 +03:00

security.h

security: add cr_fchown

2015-02-10 16:54:31 +03:00

seize.h

crtools: split cr-dump.c in two files

2015-08-06 14:31:06 +03:00

servicefd.h

usernsd: The way to restore priviledged stuff in userns

2015-02-13 16:11:38 +04:00

setproctitle.h

crtools: check for setproctitle_init

2014-09-02 16:14:39 +04:00

shmem.h

shmem: Turn shmem-info into shared objects from shremap ones

2015-01-12 14:47:24 +03:00

sigframe.h

parasite: don't include restorer.h in parasite-syscall.c

2013-11-06 12:39:36 +04:00

signalfd.h

img: Rename fdset -> imgset

2014-09-30 21:48:10 +04:00

sk-inet.h

log: don't forget LF for pr_err()

2015-07-16 14:24:13 +03:00

sk-packet.h

img: Rename fdset -> imgset

2014-09-30 21:48:10 +04:00

sk-queue.h

crtools: move all stuff about vma together

2013-11-06 12:43:49 +04:00

sockets.h

socket: remove unused code

2015-08-03 17:06:19 +03:00

stats.h

stats: Fix restore pages stats

2014-02-04 14:03:10 +04:00

string.h

make: config -- Add testing if we have libbsd installed

2014-03-26 01:44:23 +04:00

syscall-types.h

add the waitid syscall

2015-07-23 15:17:54 +03:00

sysctl.h

sysctl: Make CTL_READ nonfatal

2015-05-12 15:58:58 +03:00

sysfs_parse.h

Added AUFS support.

2014-08-21 18:35:22 +04:00

timerfd.h

rst: Fix timerfd rst memory management

2015-07-14 13:59:39 +03:00

tty.h

tty: Rework tty_driver structure

2015-04-02 20:20:01 +03:00

tun.h

check/zdtm: Introduce fine-grained feature testing

2015-01-22 18:55:34 +03:00

unix_diag.h

x86: moved x86-specific files into the directory arch/x86.

2013-01-09 17:02:47 +04:00

util-pie.h

headers: Drop uintX_t usage

2013-12-12 10:03:07 +04:00

util.h

page-server: Fine grained corking control (v3)

2015-11-11 19:13:57 +03:00

uts_ns.h

ns: Factor out namespace switching call

2014-09-30 21:54:11 +04:00

vdso.h

vdso: Implement vDSO proxification of any vvar/vdso order

2014-08-04 15:35:03 +04:00

vma.h

Pass task_size to vma_area_is_private()

2015-08-03 17:14:18 +03:00

xmalloc.h

core: Allocate CoreEntry (except arch) with single xmalloc

2014-03-14 13:39:28 +04:00