Commit 9bac8515 authored by Ben Walker's avatar Ben Walker
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CHANGELOG: Add section about build options 



Change-Id: I9cbab831496f4bee1f1be36044fc5622474848bd
Signed-off-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452692


Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarDarek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent f76c869a

CHANGELOG.md

+11 −0
Original line number Diff line number Diff line
@@ -181,6 +181,17 @@ Changed API of spdk_subsystem_config_json() to no longer be asynchronous. 
A bdev module that issues I/O to kernel block devices using the new io_uring Linux kernel

API was added. This module requires liburing.



### build



Options to easily compile with profile guided optimization have been added to

`configure`. To use profile guided optimization with SPDK, run

`./configure --with-pgo-capture`, build SPDK, then run a workload of your

choosing. Then, simply run `./configure --with-pgo-enable` and recompile to

build using the generated profile data. Profile guided optimization can yield

very large performance improvements, especially on GCC 8 and clang 7. This may

be combined with link time optimization which has been available under the

`--enable-lto` configure option for several releases.



## v19.01:



### ocf bdev