Files
SDK_SG200x_V2/linux_5.10/tools/perf/util/rlimit.c
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

30 lines
730 B
C

/* SPDX-License-Identifier: LGPL-2.1 */
#include "util/debug.h"
#include "util/rlimit.h"
#include <sys/time.h>
#include <sys/resource.h>
/*
* Bump the memlock so that we can get bpf maps of a reasonable size,
* like the ones used with 'perf trace' and with 'perf test bpf',
* improve this to some specific request if needed.
*/
void rlimit__bump_memlock(void)
{
struct rlimit rlim;
if (getrlimit(RLIMIT_MEMLOCK, &rlim) == 0) {
rlim.rlim_cur *= 4;
rlim.rlim_max *= 4;
if (setrlimit(RLIMIT_MEMLOCK, &rlim) < 0) {
rlim.rlim_cur /= 2;
rlim.rlim_max /= 2;
if (setrlimit(RLIMIT_MEMLOCK, &rlim) < 0)
pr_debug("Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF maps, etc\n");
}
}
}