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Move init code to libfio
[fio.git]
/
memory.c
diff --git
a/memory.c
b/memory.c
index b94cd6df35feed843659bc9bf88921bf55ba9be4..9e751bedcc70b2bb8b9e2bf9a74228a3478a9630 100644
(file)
--- a/
memory.c
+++ b/
memory.c
@@
-5,56
+5,56
@@
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
-#include <sys/shm.h>
#include <sys/mman.h>
#include "fio.h"
#include <sys/mman.h>
#include "fio.h"
+#ifndef FIO_NO_HAVE_SHM_H
+#include <sys/shm.h>
+#endif
-static void *pinned_mem;
-
-void fio_unpin_memory(void)
+void fio_unpin_memory(struct thread_data *td)
{
{
- if (pinned_mem) {
- dprint(FD_MEM, "unpinning %llu bytes\n",
mlock_size
);
- if (munlock(
pinned_mem, mlock_size
) < 0)
+ if (
td->
pinned_mem) {
+ dprint(FD_MEM, "unpinning %llu bytes\n",
td->o.lockmem
);
+ if (munlock(
td->pinned_mem, td->o.lockmem
) < 0)
perror("munlock");
perror("munlock");
- munmap(
pinned_mem, mlock_size
);
- pinned_mem = NULL;
+ munmap(
td->pinned_mem, td->o.lockmem
);
+
td->
pinned_mem = NULL;
}
}
}
}
-int fio_pin_memory(
voi
d)
+int fio_pin_memory(
struct thread_data *t
d)
{
unsigned long long phys_mem;
{
unsigned long long phys_mem;
- if (!
mlock_size
)
+ if (!
td->o.lockmem
)
return 0;
return 0;
- dprint(FD_MEM, "pinning %llu bytes\n",
mlock_size
);
+ dprint(FD_MEM, "pinning %llu bytes\n",
td->o.lockmem
);
/*
* Don't allow mlock of more than real_mem-128MB
*/
phys_mem = os_phys_mem();
if (phys_mem) {
/*
* Don't allow mlock of more than real_mem-128MB
*/
phys_mem = os_phys_mem();
if (phys_mem) {
- if ((
mlock_size
+ 128 * 1024 * 1024) > phys_mem) {
-
mlock_size
= phys_mem - 128 * 1024 * 1024;
+ if ((
td->o.lockmem
+ 128 * 1024 * 1024) > phys_mem) {
+
td->o.lockmem
= phys_mem - 128 * 1024 * 1024;
log_info("fio: limiting mlocked memory to %lluMB\n",
log_info("fio: limiting mlocked memory to %lluMB\n",
-
mlock_size
>> 20);
+
td->o.lockmem
>> 20);
}
}
}
}
-
pinned_mem = mmap(NULL, mlock_size
, PROT_READ | PROT_WRITE,
+
td->pinned_mem = mmap(NULL, td->o.lockmem
, PROT_READ | PROT_WRITE,
MAP_PRIVATE | OS_MAP_ANON, -1, 0);
MAP_PRIVATE | OS_MAP_ANON, -1, 0);
- if (pinned_mem == MAP_FAILED) {
+ if (
td->
pinned_mem == MAP_FAILED) {
perror("malloc locked mem");
perror("malloc locked mem");
- pinned_mem = NULL;
+
td->
pinned_mem = NULL;
return 1;
}
return 1;
}
- if (mlock(
pinned_mem, mlock_size
) < 0) {
+ if (mlock(
td->pinned_mem, td->o.lockmem
) < 0) {
perror("mlock");
perror("mlock");
- munmap(
pinned_mem, mlock_size
);
- pinned_mem = NULL;
+ munmap(
td->pinned_mem, td->o.lockmem
);
+
td->
pinned_mem = NULL;
return 1;
}
return 1;
}
@@
-63,7
+63,7
@@
int fio_pin_memory(void)
static int alloc_mem_shm(struct thread_data *td, unsigned int total_mem)
{
static int alloc_mem_shm(struct thread_data *td, unsigned int total_mem)
{
- int flags = IPC_CREAT | S
HM_R | SHM_W
;
+ int flags = IPC_CREAT | S
_IRUSR | S_IWUSR
;
if (td->o.mem_type == MEM_SHMHUGE) {
unsigned long mask = td->o.hugepage_size - 1;
if (td->o.mem_type == MEM_SHMHUGE) {
unsigned long mask = td->o.hugepage_size - 1;
@@
-115,12
+115,21
@@
static void free_mem_shm(struct thread_data *td)
shmctl(td->shm_id, IPC_RMID, &sbuf);
}
shmctl(td->shm_id, IPC_RMID, &sbuf);
}
-static int alloc_mem_mmap(struct thread_data *td,
unsigned in
t total_mem)
+static int alloc_mem_mmap(struct thread_data *td,
size_
t total_mem)
{
{
- int flags =
MAP_PRIVATE
;
+ int flags =
0
;
td->mmapfd = 1;
td->mmapfd = 1;
+ if (td->o.mem_type == MEM_MMAPHUGE) {
+ unsigned long mask = td->o.hugepage_size - 1;
+
+ /* TODO: make sure the file is a real hugetlbfs file */
+ if (!td->mmapfile)
+ flags |= MAP_HUGETLB;
+ total_mem = (total_mem + mask) & ~mask;
+ }
+
if (td->mmapfile) {
td->mmapfd = open(td->mmapfile, O_RDWR|O_CREAT, 0644);
if (td->mmapfile) {
td->mmapfd = open(td->mmapfile, O_RDWR|O_CREAT, 0644);
@@
-129,18
+138,23
@@
static int alloc_mem_mmap(struct thread_data *td, unsigned int total_mem)
td->orig_buffer = NULL;
return 1;
}
td->orig_buffer = NULL;
return 1;
}
- if (ftruncate(td->mmapfd, total_mem) < 0) {
+ if (td->o.mem_type != MEM_MMAPHUGE &&
+ ftruncate(td->mmapfd, total_mem) < 0) {
td_verror(td, errno, "truncate mmap file");
td->orig_buffer = NULL;
return 1;
}
td_verror(td, errno, "truncate mmap file");
td->orig_buffer = NULL;
return 1;
}
+ if (td->o.mem_type == MEM_MMAPHUGE)
+ flags |= MAP_SHARED;
+ else
+ flags |= MAP_PRIVATE;
} else
} else
- flags |= OS_MAP_ANON;
+ flags |= OS_MAP_ANON
| MAP_PRIVATE
;
td->orig_buffer = mmap(NULL, total_mem, PROT_READ | PROT_WRITE, flags,
td->mmapfd, 0);
td->orig_buffer = mmap(NULL, total_mem, PROT_READ | PROT_WRITE, flags,
td->mmapfd, 0);
- dprint(FD_MEM, "mmap %
u/%d %p\n", total_mem, td->mmapfd
,
- td->orig_buffer);
+ dprint(FD_MEM, "mmap %
llu/%d %p\n", (unsigned long long) total_mem
,
+ td->
mmapfd, td->
orig_buffer);
if (td->orig_buffer == MAP_FAILED) {
td_verror(td, errno, "mmap");
td->orig_buffer = NULL;
if (td->orig_buffer == MAP_FAILED) {
td_verror(td, errno, "mmap");
td->orig_buffer = NULL;
@@
-155,9
+169,10
@@
static int alloc_mem_mmap(struct thread_data *td, unsigned int total_mem)
return 0;
}
return 0;
}
-static void free_mem_mmap(struct thread_data *td,
unsigned in
t total_mem)
+static void free_mem_mmap(struct thread_data *td,
size_
t total_mem)
{
{
- dprint(FD_MEM, "munmap %u %p\n", total_mem, td->orig_buffer);
+ dprint(FD_MEM, "munmap %llu %p\n", (unsigned long long) total_mem,
+ td->orig_buffer);
munmap(td->orig_buffer, td->orig_buffer_size);
if (td->mmapfile) {
close(td->mmapfd);
munmap(td->orig_buffer, td->orig_buffer_size);
if (td->mmapfile) {
close(td->mmapfd);
@@
-166,10
+181,11
@@
static void free_mem_mmap(struct thread_data *td, unsigned int total_mem)
}
}
}
}
-static int alloc_mem_malloc(struct thread_data *td,
unsigned in
t total_mem)
+static int alloc_mem_malloc(struct thread_data *td,
size_
t total_mem)
{
td->orig_buffer = malloc(total_mem);
{
td->orig_buffer = malloc(total_mem);
- dprint(FD_MEM, "malloc %u %p\n", total_mem, td->orig_buffer);
+ dprint(FD_MEM, "malloc %llu %p\n", (unsigned long long) total_mem,
+ td->orig_buffer);
return td->orig_buffer == NULL;
}
return td->orig_buffer == NULL;
}
@@
-181,11
+197,11
@@
static void free_mem_malloc(struct thread_data *td)
}
/*
}
/*
- * Setup the buffer area we need for io.
+ * Set
up the buffer area we need for io.
*/
int allocate_io_mem(struct thread_data *td)
{
*/
int allocate_io_mem(struct thread_data *td)
{
-
unsigned in
t total_mem;
+
size_
t total_mem;
int ret = 0;
if (td->io_ops->flags & FIO_NOIO)
int ret = 0;
if (td->io_ops->flags & FIO_NOIO)
@@
-200,6
+216,8
@@
int allocate_io_mem(struct thread_data *td)
total_mem += td->o.mem_align - page_size;
}
total_mem += td->o.mem_align - page_size;
}
+ dprint(FD_MEM, "Alloc %llu for buffers\n", (unsigned long long) total_mem);
+
if (td->o.mem_type == MEM_MALLOC)
ret = alloc_mem_malloc(td, total_mem);
else if (td->o.mem_type == MEM_SHM || td->o.mem_type == MEM_SHMHUGE)
if (td->o.mem_type == MEM_MALLOC)
ret = alloc_mem_malloc(td, total_mem);
else if (td->o.mem_type == MEM_SHM || td->o.mem_type == MEM_SHMHUGE)