Hi Heinrich, OK...I can't remember the details but there is a tool that does that. The format that U-Boot's proftool emits is pretty standard. I recall using it with a tool the kernel uses to get info like you are looking for.
Regards, Simon On Mon, 24 Jun 2019 at 11:30, Heinrich Schuchardt <xypron.g...@gmx.de> wrote: > On 6/24/19 3:56 PM, Simon Glass wrote: > > Hi Heinrich, > > > > On Sat, 22 Jun 2019 at 20:37, Heinrich Schuchardt <xypron.g...@gmx.de> > wrote: > >> > >> On 6/22/19 9:10 PM, Simon Glass wrote: > >>> On Fri, 14 Jun 2019 at 20:51, Heinrich Schuchardt <xypron.g...@gmx.de> > wrote: > >>>> > >>>> There is no good reason to limit the trace buffer to 2GiB on a 64bit > >>>> system. Adjust the types of the relevant parameters. > >>>> > >>>> Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de> > >>>> --- > >>>> cmd/trace.c | 10 ++++------ > >>>> include/trace.h | 6 +++--- > >>>> lib/trace.c | 14 +++++++------- > >>>> tools/proftool.c | 4 ++-- > >>>> 4 files changed, 16 insertions(+), 18 deletions(-) > >>> > >>> Wow it's going to take a very long time to transfer that much data > >>> over your network. > >> > >> Thanks for reviewing. > >> > >> I am writing files with the traces to the mounted file system. > >> > >> I activated traces in lib/efi_loader only and found several hundred > >> thousand function calls just to start Shell.efi which ended up in > >> exceeding the trace buffer. This is why want to lift unnecessary > >> restrictions. > >> > >> What I still need to write is a script to analyze the traces to > >> calculate the gross and the net time spent in each function. > > > > OK I see, sounds good. Also, I suppose you saw that you can use > > pytimechart to view the data, as in README.trace > > Yes, thanks I saw it. I would like to get output like this: > > > https://sapinsider.wispubs.com/-/media/Alloy/Images/Assets/Articles/2018%20January/SPI-01-2018_Mensch_Fig07-large.jpg > > where for each function I see: > > * number of invocations > * gross time (sum of individual exit time minus entry time) > * net time (the same but without the calls invoked by the function) > > Regards > > Heinrich > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
