Commit 67109ff8 authored by Maciej Szwed's avatar Maciej Szwed Committed by Tomasz Zawadzki
Browse files

changelog: Add information regarding scheduler implementation 



Signed-off-by: default avatarMaciej Szwed <maciej.szwed@intel.com>
Change-Id: Id389ffb2c6091add92fb2849fac21a0472c8a404
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4857


Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 7fc48a5f

CHANGELOG.md

+13 −0
Original line number Diff line number Diff line
@@ -40,6 +40,19 @@ Removed `spdk_subsystem_config` callback for submodules as part of legacy config 
Removed `spdk_app_get_running_config` function that printed configuration in legacy format,

and removed `usr1_handler` from `struct spdk_app_opts` callback that was used to call it.



Added SPDK thread scheduler framework which is used to rebalance load among CPU cores.

The scheduler implementation is pluggable and two schedulers are added first, `static` scheduler

and `gscheduler` scheduler.



`static` scheduler is used by default and does not reschedule threads and keeps the initial

assignments.



CPU frequency governor framework and implementation are also added.

`dpdk_governor` is the first implementation and is based on rte_power library of DPDK.

`gscheduler` scheduler utilizes the CPU frequency governor.



Scheduler and governor frameworks are experimental features.



### fio



Bdev fio_plugin no longer supports legacy configuration files. Options `spdk_conf` and