On Sat, Mar 30, 2024 at 10:52 AM Jiri Olsa wrote:
>
> On Sat, Mar 30, 2024 at 08:27:55AM -0400, Steven Rostedt wrote:
> > On Fri, 29 Mar 2024 16:28:33 -0700
> > Andrii Nakryiko wrote:
> >
> > > I thought I'll just ask instead of digging through code, sorry for
> > > being lazy :) Is there any way
On Sat, 30 Mar 2024 11:18:29 +0800
梦龙董 wrote:
> > If you really want to have thousands of functions, why not just register it
> > with ftrace itself. It will give you the arguments via the ftrace_regs
> > structure. Can't you just register a program as the callback?
> >
>
> Ennn...I don't unde
On Sat, Mar 30, 2024 at 08:27:55AM -0400, Steven Rostedt wrote:
> On Fri, 29 Mar 2024 16:28:33 -0700
> Andrii Nakryiko wrote:
>
> > I thought I'll just ask instead of digging through code, sorry for
> > being lazy :) Is there any way to pass pt_regs/ftrace_regs captured
> > before function execut
Enforce consistency across files by avoiding two separate functions to parse
/proc/self/maps, replacing them with a simple sscanf().
Signed-off-by: Dev Jain
---
tools/testing/selftests/mm/mremap_test.c | 18 +++---
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/tools/
Allocate a pre-filled random buffer using the seed. Replace iterative copying
of the random sequence to buffers using the highly optimized library
function memcpy().
Signed-off-by: Dev Jain
---
tools/testing/selftests/mm/mremap_test.c | 78
1 file changed, 53 insertions(
Mismatch index is currently being checked by a brute force iteration over the
buffer. Instead, break the comparison into O(sqrt(n)) number of chunks, with
the chunk size of this order only, where n is the size of the buffer. Do a
brute-force iteration to print to stdout only when the highly optimiz
The mremap_test, in a worst case controlled by the -t flag, does a for loop
iteration in orders of GB. Without compromising on the stdout report, the aim
is to reduce this time.
A pre-filled random buffer is allocated based on the seed, replacing repetitive
rand() calls. The byte pattern in the me
On Fri, 29 Mar 2024 16:28:33 -0700
Andrii Nakryiko wrote:
> I thought I'll just ask instead of digging through code, sorry for
> being lazy :) Is there any way to pass pt_regs/ftrace_regs captured
> before function execution to a return probe (fexit/kretprobe)? I.e.,
> how hard is it to pass inpu
* Shuah Khan wrote:
> On 3/29/24 01:36, Ingo Molnar wrote:
> >
> > * Shuah Khan wrote:
> >
> > > On 3/27/24 05:17, Muhammad Usama Anjum wrote:
> > > > Skip instead of failing when prerequisite conditions aren't fulfilled,
> > > > such as invalid xstate values etc. This patch would make the t
