[lldb-dev] Problem with large sym files (dsymutil speed)
ASomorjai at graphisoft.com
Mon Sep 26 10:03:55 PDT 2011
It's at least 39 MB-s; I can't tell exactly because dsymutil bails out (the original problem).
I have a feeling that we are going in circles :)
2011.09.26. dátummal, 18:57 időpontban "Greg Clayton" <gclayton at apple.com> írta:
> If you are linking a single architecture, unfortunately there isn't much you can do. Linking DWARF is a serialized process where we take DWARF from a bunch of .o files and then make a single out file. All DWARF sections have to be appended to one another and they have interdependencies, so even though dsymutil does use multi-threading to parse 8 .o files ahead, it doesn't help in the long run. clang and llvm-gcc make debug info that is around 4 times bigger that gcc, so this probably makes things worse for you guys.
> How big is your dSYM file?
> On Sep 26, 2011, at 6:38 AM, Somorjai, Akos wrote:
>> Another issue is dsymutil's speed; it takes about 10 minutes to run it on
>> our main executable, which is more than unbearable. Is their anything we
>> can do to reduce that time?
More information about the lldb-dev