Messages in this thread | | | Date | Fri, 20 Mar 2020 17:20:47 +0100 (CET) | From | Miroslav Benes <> | Subject | Re: [PATCH v2 17/19] objtool: Optimize !vmlinux.o again |
| |
On Wed, 18 Mar 2020, Peter Zijlstra wrote:
> On Tue, Mar 17, 2020 at 06:02:51PM +0100, Peter Zijlstra wrote: > > When doing kbuild tests to see if the objtool changes affected those I > > found that there was a measurable regression: > > > > pre post > > > > real 1m13.594 1m16.488s > > user 34m58.246s 35m23.947s > > sys 4m0.393s 4m27.312s > > > > Perf showed that for small files the increased hash-table sizes were a > > measurable difference. Since we already have -l "vmlinux" to > > distinguish between the modes, make it also use a smaller portion of > > the hash-tables. > > > > This flips it into a small win: > > > > real 1m14.143s > > user 34m49.292s > > sys 3m44.746s > > > > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> > > There was one 'elf_' prefixing gone missing. Updated patch below.
I think there is one more missing in create_orc_entry().
Miroslav
| |