mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

migration/multifd: add qpl compression method

Browse Source 
add the Query Processing Library (QPL) compression method

Introduce the qpl as a new multifd migration compression method, it can
use In-Memory Analytics Accelerator(IAA) to accelerate compression and
decompression, which can not only reduce network bandwidth requirement
but also reduce host compression and decompression CPU overhead.

How to enable qpl compression during migration:
migrate_set_parameter multifd-compression qpl

There is no qpl compression level parameter added since it only supports
level one, users do not need to specify the qpl compression level.

Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Reviewed-by: Nanhai Zou <nanhai.zou@intel.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
[fixed docs spacing in migration.json]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Yuan Liu 2024-06-10 18:21:07 +08:00 committed by Fabiano Rosas
parent b844a2c7cc
commit 354cac2859
5 changed files with 30 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/core/qdev-properties-system.c
View File

@ -659,7 +659,7 @@ const PropertyInfo qdev_prop_fdc_drive_type = {
const PropertyInfo qdev_prop_multifd_compression = { const PropertyInfo qdev_prop_multifd_compression = {
.name = "MultiFDCompression", .name = "MultiFDCompression",
.description = "multifd_compression values, " .description = "multifd_compression values, "
"none/zlib/zstd", "none/zlib/zstd/qpl",
.enum_table = &MultiFDCompression_lookup, .enum_table = &MultiFDCompression_lookup,
.get = qdev_propinfo_get_enum, .get = qdev_propinfo_get_enum,
.set = qdev_propinfo_set_enum, .set = qdev_propinfo_set_enum,

1
migration/meson.build
View File

@ -39,6 +39,7 @@ endif
system_ss.add(when: rdma, if_true: files('rdma.c')) system_ss.add(when: rdma, if_true: files('rdma.c'))
system_ss.add(when: zstd, if_true: files('multifd-zstd.c')) system_ss.add(when: zstd, if_true: files('multifd-zstd.c'))
system_ss.add(when: qpl, if_true: files('multifd-qpl.c'))
specific_ss.add(when: 'CONFIG_SYSTEM_ONLY', specific_ss.add(when: 'CONFIG_SYSTEM_ONLY',
if_true: files('ram.c', if_true: files('ram.c',

20
migration/multifd-qpl.c Normal file
View File

@ -0,0 +1,20 @@
/*
* Multifd qpl compression accelerator implementation
*
* Copyright (c) 2023 Intel Corporation
*
* Authors:
* Yuan Liu<yuan1.liu@intel.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qemu/module.h"
static void multifd_qpl_register(void)
{
/* noop */
}
migration_init(multifd_qpl_register);

1
migration/multifd.h
View File

@ -40,6 +40,7 @@ MultiFDRecvData *multifd_get_recv_data(void);
#define MULTIFD_FLAG_NOCOMP (0 << 1) #define MULTIFD_FLAG_NOCOMP (0 << 1)
#define MULTIFD_FLAG_ZLIB (1 << 1) #define MULTIFD_FLAG_ZLIB (1 << 1)
#define MULTIFD_FLAG_ZSTD (2 << 1) #define MULTIFD_FLAG_ZSTD (2 << 1)
#define MULTIFD_FLAG_QPL (4 << 1)
/* This value needs to be a multiple of qemu_target_page_size() */ /* This value needs to be a multiple of qemu_target_page_size() */
#define MULTIFD_PACKET_SIZE (512 * 1024) #define MULTIFD_PACKET_SIZE (512 * 1024)

8
qapi/migration.json
View File

@ -554,11 +554,17 @@
# #
# @zstd: use zstd compression method. # @zstd: use zstd compression method.
# #
# @qpl: use qpl compression method. Query Processing Library(qpl) is
# based on the deflate compression algorithm and use the Intel
# In-Memory Analytics Accelerator(IAA) accelerated compression
# and decompression. (Since 9.1)
#
# Since: 5.0 # Since: 5.0
## ##
{ 'enum': 'MultiFDCompression', { 'enum': 'MultiFDCompression',
'data': [ 'none', 'zlib', 'data': [ 'none', 'zlib',
{ 'name': 'zstd', 'if': 'CONFIG_ZSTD' } ] } { 'name': 'zstd', 'if': 'CONFIG_ZSTD' },
{ 'name': 'qpl', 'if': 'CONFIG_QPL' } ] }
## ##
# @MigMode: # @MigMode: