謝致邦 (XIE Zhibang)

https://github.com/archlinuxcn/repo/issues/2437

https://github.com/archlinuxcn/repo/issues/2437

Specify full class name to fix failing migrations.

1

Fix the following migration problem: ``` migration 2, :add_balance_to_users do up do modify_table :users do add_column :balance, Decimal end end down do modify_table :users do drop_column :balance end end end...

"--h-shift Acceptable horizontal shift of pixel. (default: 0)" "--v-shift Acceptable vertical shift of pixel. (default: 0)" Signed-off-by: 谢致邦 (XIE Zhibang) I confirm that this contribution is made under the terms...

"--h-shift Acceptable horizontal shift of pixel. (default: 0)" "--v-shift Acceptable vertical shift of pixel. (default: 0)" Signed-off-by: 谢致邦 (XIE Zhibang) I confirm that this contribution is made under the terms...

virtual-host: More aggressive writeback of dirty

1

`vm.dirty_ratio` of system default is 20, so set `vm.dirty_ratio` of `virtual-host` to 10. [RHEL 7: Virtualization Tuning and Optimization Guide: Chapter 4. tuned and tuned-adm](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_tuning_and_optimization_guide/chap-virtualization_tuning_optimization_guide-tuned): > Based on the throughput-performance...

virtual-guest: Decrease the swappiness

1

`vm.swappiness` of `throughput-performance` is [10](https://github.com/redhat-performance/tuned/blob/master/profiles/throughput-performance/tuned.conf#L59), so set `vm.swappiness` of `virtual-guest` to 5. [RHEL 7: Virtualization Tuning and Optimization Guide: Chapter 4. tuned and tuned-adm](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_tuning_and_optimization_guide/chap-virtualization_tuning_optimization_guide-tuned): > Based on the throughput-performance profile,...