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| author | Yuan Liu <yuan1.liu@intel.com> | 2024-06-10 18:21:07 +0800 |
|---|---|---|
| committer | Fabiano Rosas <farosas@suse.de> | 2024-06-14 14:01:28 -0300 |
| commit | 354cac2859e48ec5f7ee72a2a071da6c60a462d0 (patch) | |
| tree | 4b47ac522083cac2337e59c3d393972299df15fd /migration | |
| parent | b844a2c7cc7f7c7756a27d372e64f6688d67c4eb (diff) | |
| download | qemu-354cac2859e48ec5f7ee72a2a071da6c60a462d0.zip qemu-354cac2859e48ec5f7ee72a2a071da6c60a462d0.tar.gz qemu-354cac2859e48ec5f7ee72a2a071da6c60a462d0.tar.bz2 | |
migration/multifd: add qpl compression method
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>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/meson.build | 1 | ||||
| -rw-r--r-- | migration/multifd-qpl.c | 20 | ||||
| -rw-r--r-- | migration/multifd.h | 1 |
3 files changed, 22 insertions, 0 deletions
diff --git a/migration/meson.build b/migration/meson.build index bdc3244..5f146fe 100644 --- a/migration/meson.build +++ b/migration/meson.build @@ -39,6 +39,7 @@ endif 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: qpl, if_true: files('multifd-qpl.c')) specific_ss.add(when: 'CONFIG_SYSTEM_ONLY', if_true: files('ram.c', diff --git a/migration/multifd-qpl.c b/migration/multifd-qpl.c new file mode 100644 index 0000000..056a68a --- /dev/null +++ b/migration/multifd-qpl.c @@ -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); diff --git a/migration/multifd.h b/migration/multifd.h index c9d9b09..5b7d9b1 100644 --- a/migration/multifd.h +++ b/migration/multifd.h @@ -40,6 +40,7 @@ MultiFDRecvData *multifd_get_recv_data(void); #define MULTIFD_FLAG_NOCOMP (0 << 1) #define MULTIFD_FLAG_ZLIB (1 << 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() */ #define MULTIFD_PACKET_SIZE (512 * 1024) |