On 4/4/18 2:45 PM, Seebs wrote: > On Wed, 4 Apr 2018 14:28:11 -0700 > Khem Raj <raj.k...@gmail.com> wrote: > >> what is the performance impact of adding another stack frame and >> function call in the chain here. Do we have data ? > > Very close to unmeasurable, because *almost nothing ever uses syscall*. > > This is used only for the case where someone is explicitly calling > syscall(), not for any other system call use case. And my > implementation (which is not the same as this one) also overrides the > wrapper generation, so there's no standard pseudo wrapper overhead > (which is several times larger and involves mutexes and signal mask > changing), it's just passing the call on unless it's SYS_renameat2. >
Thanks for this > -s > -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
