| Message ID | 1600139042-104593-1-git-send-email-zhengchuan@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | *** Add Multifd support for TLS migration *** | expand |
* Chuan Zheng (zhengchuan@huawei.com) wrote: > v3 -> v4: > still use MigrationState field and save hostname in migration_tls_channel_connect > remove MigrationState from MultiFDSendParams > > v2 -> v3: > rebase patches on master > > v1 -> v2: > fix memoryleak of MigrationState hostname > add tls_hostname into MultiFDSendParams for handshake use > fix function alignment > squash Patch005 and Patch006 > add ioc into trace-events > > TLS migration could easily reach bottleneck of cpu because of encryption > and decryption in migration thread. > In our test, the tls migration could only reach 300MB/s under bandwidth > of 500MB/s. > > Inspired by multifd, we add multifd support for tls migration to make fully > use of given net bandwidth at the cost of multi-cpus and could reduce > at most of 100% migration time with 4U16G test vm. > > Evaluate migration time of migration vm. > The VM specifications for migration are as follows: > - VM use 4-K page; > - the number of VCPU is 4; > - the total memory is 16Gigabit; > - use 'mempress' tool to pressurize VM(mempress 4096 100); > - migration flag is 73755 (8219 + 65536 (TLS)) vs 204827 (8219 + 65536 (TLS) + 131072(Multifd)) > > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > | | TLS | MultiFD + TLS (2 channel) | > --------------------------------------------------------t--------------------------- > | mempress 1024 120 | 25.035s | 15.067s | > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > | mempress 1024 200 | 48.798s | 25.334s | > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Queued. > Chuan Zheng (6): > migration/tls: save hostname into MigrationState > migration/tls: extract migration_tls_client_create for common-use > migration/tls: add tls_hostname into MultiFDSendParams > migration/tls: extract cleanup function for common-use > migration/tls: add support for multifd tls-handshake > migration/tls: add trace points for multifd-tls > > migration/channel.c | 1 + > migration/migration.c | 1 + > migration/migration.h | 5 ++ > migration/multifd.c | 124 +++++++++++++++++++++++++++++++++++++++++++------ > migration/multifd.h | 2 + > migration/tls.c | 28 +++++++---- > migration/tls.h | 6 +++ > migration/trace-events | 4 ++ > 8 files changed, 149 insertions(+), 22 deletions(-) > > -- > 1.8.3.1 > >
v3 -> v4: still use MigrationState field and save hostname in migration_tls_channel_connect remove MigrationState from MultiFDSendParams v2 -> v3: rebase patches on master v1 -> v2: fix memoryleak of MigrationState hostname add tls_hostname into MultiFDSendParams for handshake use fix function alignment squash Patch005 and Patch006 add ioc into trace-events TLS migration could easily reach bottleneck of cpu because of encryption and decryption in migration thread. In our test, the tls migration could only reach 300MB/s under bandwidth of 500MB/s. Inspired by multifd, we add multifd support for tls migration to make fully use of given net bandwidth at the cost of multi-cpus and could reduce at most of 100% migration time with 4U16G test vm. Evaluate migration time of migration vm. The VM specifications for migration are as follows: - VM use 4-K page; - the number of VCPU is 4; - the total memory is 16Gigabit; - use 'mempress' tool to pressurize VM(mempress 4096 100); - migration flag is 73755 (8219 + 65536 (TLS)) vs 204827 (8219 + 65536 (TLS) + 131072(Multifd)) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | | TLS | MultiFD + TLS (2 channel) | --------------------------------------------------------t--------------------------- | mempress 1024 120 | 25.035s | 15.067s | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | mempress 1024 200 | 48.798s | 25.334s | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Chuan Zheng (6): migration/tls: save hostname into MigrationState migration/tls: extract migration_tls_client_create for common-use migration/tls: add tls_hostname into MultiFDSendParams migration/tls: extract cleanup function for common-use migration/tls: add support for multifd tls-handshake migration/tls: add trace points for multifd-tls migration/channel.c | 1 + migration/migration.c | 1 + migration/migration.h | 5 ++ migration/multifd.c | 124 +++++++++++++++++++++++++++++++++++++++++++------ migration/multifd.h | 2 + migration/tls.c | 28 +++++++---- migration/tls.h | 6 +++ migration/trace-events | 4 ++ 8 files changed, 149 insertions(+), 22 deletions(-)