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| author | Huang Ying <ying.huang@intel.com> | 2018-05-11 15:58:52 +0800 |
|---|---|---|
| committer | Fengguang Wu <fengguang.wu@intel.com> | 2018-05-11 16:20:19 +0800 |
| commit | f218124ddd60fbd37fc9610aac78783c4742678f (patch) | |
| tree | 4861dd8f28dbb9da61c0ed0c329010a45ff123af | |
| parent | ed7b37de564ae7c1cb0e456b7a7a023821e27c16 (diff) | |
| download | vm-scalability-f218124ddd60fbd37fc9610aac78783c4742678f.tar.gz | |
usemem: Support allocate hugetlbfs memory
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
| -rw-r--r-- | usemem.c | 16 |
1 files changed, 14 insertions, 2 deletions
@@ -56,6 +56,13 @@ #define MAX_POINTERS 32 +#ifndef MAP_HUGE_2MB +#define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT) +#endif +#ifndef MAP_HUGE_1GB +#define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT) +#endif + char *ourname; int pagesize; unsigned long done_bytes = 0; @@ -97,6 +104,7 @@ char *pid_filename; int map_shared = MAP_PRIVATE; int map_populate; int map_anonymous; +int map_hugetlb; int fd; int start_ready_fds[2]; int start_wake_fds[2]; @@ -140,6 +148,7 @@ void usage(int ok) " -x|--sync-free sync between tasks before free memory\n" " -e|--delay delay for each page in ns\n" " -O|--anonymous mmap with MAP_ANONYMOUS\n" + " -U|--hugetlb allocate hugetlbfs page\n" " -h|--help show this message\n" , ourname); @@ -380,7 +389,7 @@ unsigned long * allocate(unsigned long bytes) } else { p = mmap(NULL, bytes, (opt_readonly && !opt_openrw) ? PROT_READ : PROT_READ|PROT_WRITE, - map_shared|map_populate|map_anonymous, + map_shared|map_populate|map_anonymous|map_hugetlb, map_anonymous ? -1 : fd, 0); if (p == MAP_FAILED) { fprintf(stderr, "%s: mmap failed: %s\n", @@ -916,7 +925,7 @@ int main(int argc, char *argv[]) pagesize = getpagesize(); while ((c = getopt_long(argc, argv, - "aAf:FPp:gqowRMm:n:t:b:ds:T:Sr:u:j:e:EHDNLWyxOh", opts, NULL)) != -1) + "aAf:FPp:gqowRMm:n:t:b:ds:T:Sr:u:j:e:EHDNLWyxOUh", opts, NULL)) != -1) { switch (c) { case 'a': @@ -1031,6 +1040,9 @@ int main(int argc, char *argv[]) case 'O': map_anonymous = MAP_ANONYMOUS; + + case 'U': + map_hugetlb = MAP_HUGETLB | MAP_HUGE_2MB; break; default: |