On Thu, 2010-11-25 at 09:00 +0800, Li Zefan wrote: > Cc: Richard Kennedy <richard@xxxxxxxxxxxxxxx> > > Steven Rostedt wrote: > > From: Steven Rostedt <srostedt@xxxxxxxxxx> > > > > The tracepoint for kmalloc is in the slub inlined code which causes > > every instance of kmalloc to have the tracepoint. > > > > This patch moves the tracepoint out of the inline code to the > > slub C file (and to page_alloc), which removes a large number of > > inlined trace points. > > > > objdump -dr vmlinux.slub| grep 'jmpq.*<trace_kmalloc' |wc -l > > 375 > > objdump -dr vmlinux.slub.patched| grep 'jmpq.*<trace_kmalloc' |wc -l > > 2 > > > > This also has a nice impact on size. > > text data bss dec hex filename > > 7050424 1961068 2482688 11494180 af6324 vmlinux.slub > > 6979599 1944620 2482688 11406907 ae0e3b vmlinux.slub.patched > > > > Siged-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx> > > See this patch from Richard: :) > > http://marc.info/?l=linux-kernel&m=128765337729262&w=2 > > But he only touched slub. Hehe, and I forgot about it ;-) I notice the large number of kmalloc tracepoints while analyzing the jump label code, and wanted to do something about it. I also see that Pekka replied saying that he applied it. Pekka, want to take my first patch? -- Steve -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>