[panda-users] inlining of functions in panda/common.h?

Manolis Stamatogiannakis mstamat at gmail.com
Mon Oct 1 11:38:33 EDT 2018


I moved the implementation from common.c to common.h and marked them static
inline.

This seems to be the most portable approach for inlining (
https://www.greenend.org.uk/rjk/tech/inline.html).

M.

On Mon, 1 Oct 2018, 17:26 Brendan Dolan-Gavitt, <brendandg at nyu.edu> wrote:

> What's involved in inlining them? Simply marking them as "inline" in the
> header?
>
> On Mon, Oct 1, 2018 at 9:39 AM, Manolis Stamatogiannakis
> <mstamat at gmail.com> wrote:
> > I had this in the back of my mind for some time, but today I gave it a
> try
> > to see the effects.
> >
> > Many functions declared in panda/common.h are only thin wrappers around
> > other functions. E.g.:
> > int panda_physical_memory_rw(hwaddr addr, uint8_t *buf, int len, int
> > is_write);
> > hwaddr panda_virt_to_phys(CPUState *env, target_ulong addr);
> > int panda_virtual_memory_rw(CPUState *env, target_ulong addr, uint8_t
> *buf,
> > int len, int is_write);
> > int panda_virtual_memory_read(CPUState *env, target_ulong addr, uint8_t
> > *buf, int len);
> > int panda_virtual_memory_write(CPUState *env, target_ulong addr, uint8_t
> > *buf, int len);
> >
> > Is there any reason these have not been implemented as inlines?
> >
> > After inlining them (a 5' task), my reply replay ran ~5% faster
> (141.7sec ->
> > 133.7sec). Not a huge improvement, but given the effort required for the
> > change, one can't complain.
> >
> > Thanks,
> > Manolis
> >
> > _______________________________________________
> > panda-users mailing list
> > panda-users at mit.edu
> >
> https://urldefense.proofpoint.com/v2/url?u=http-3A__mailman.mit.edu_mailman_listinfo_panda-2Dusers&d=DwICAg&c=slrrB7dE8n7gBJbeO0g-IQ&r=A4wu5Zmpus3hDmokNWeJTO0SLjrxguzCAxn30Hc-o48&m=HSkp0HaNEn4JxGH47OBshPtVt8yawjH9TlZ7cW5xaH4&s=Z6_aPLmeXQf7Lrg7FEBZtXPy2bSMUjaDmTTrkGjskP4&e=
> >
>
>
>
> --
> Brendan Dolan-Gavitt
> Assistant Professor, Department of Computer Science and Engineering
> NYU Tandon School of Engineering
>
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