* [LTP] [PATCH 0/2] use system_specific_hugepages_info.h/.c
@ 2011-04-21 7:13 Caspar Zhang
2011-04-21 7:13 ` [LTP] [PATCH 1/2] add get_no_of_free_hugepages function Caspar Zhang
2011-04-22 3:26 ` [LTP] [PATCH 0/2] use system_specific_hugepages_info.h/.c Garrett Cooper
0 siblings, 2 replies; 4+ messages in thread
From: Caspar Zhang @ 2011-04-21 7:13 UTC (permalink / raw)
To: LTP List
I found some tests in hugemmap uses
$(topdir)/include/system_specific_hugepages_info.h while some others not.
I also find some function overlaps in hugemmap tests, like getting
hugepagesize or getting free hugepages, I believe we could move all these
funtions to system_specific_hugepages_info.c and make the code simpler and
cleaner.
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* [LTP] [PATCH 1/2] add get_no_of_free_hugepages function
2011-04-21 7:13 [LTP] [PATCH 0/2] use system_specific_hugepages_info.h/.c Caspar Zhang
@ 2011-04-21 7:13 ` Caspar Zhang
2011-04-21 7:13 ` [LTP] [PATCH 2/2] hugemmap: use common header files Caspar Zhang
2011-04-22 3:26 ` [LTP] [PATCH 0/2] use system_specific_hugepages_info.h/.c Garrett Cooper
1 sibling, 1 reply; 4+ messages in thread
From: Caspar Zhang @ 2011-04-21 7:13 UTC (permalink / raw)
To: LTP List
[-- Attachment #1: Type: text/plain, Size: 393 bytes --]
I want to enable using hugepage releated functions in
$(topdir)/lib/system_specific_hugepages_info.c and I added a function to
get No. of free_hugepages.
Signed-off-by: Caspar Zhang <czhang@redhat.com>
---
include/system_specific_hugepages_info.h | 4 ++-
lib/system_specific_hugepages_info.c | 44 ++++++++++++++++++++---------
2 files changed, 33 insertions(+), 15 deletions(-)
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-add-get_no_of_free_hugepages-function.patch --]
[-- Type: text/x-patch; name="0001-add-get_no_of_free_hugepages-function.patch", Size: 3158 bytes --]
diff --git a/include/system_specific_hugepages_info.h b/include/system_specific_hugepages_info.h
index 43c5ddc..f5e3c46 100644
--- a/include/system_specific_hugepages_info.h
+++ b/include/system_specific_hugepages_info.h
@@ -22,7 +22,9 @@
/*Returns Total No. of available Hugepages in the system from /proc/meminfo*/
int get_no_of_hugepages(void);
+/*Returns No. of Hugepages_Free from /proc/meminfo*/
+int get_no_of_free_hugepages(void);
/*Returns Hugepages Size from /proc/meminfo*/
int hugepages_size(void);
-#endif
+#endif
diff --git a/lib/system_specific_hugepages_info.c b/lib/system_specific_hugepages_info.c
index 7e9be3b..2344add 100644
--- a/lib/system_specific_hugepages_info.c
+++ b/lib/system_specific_hugepages_info.c
@@ -29,22 +29,19 @@
#include <sys/types.h>
#include <test.h>
-#define BUFSIZE 512
-
int get_no_of_hugepages() {
#ifdef __linux__
FILE *f;
char buf[BUFSIZ];
f = popen("grep 'HugePages_Total' /proc/meminfo | cut -d ':' -f2 | tr -d ' \n'", "r");
- if (!f) {
- tst_resm(TBROK, "Could not get info about Total_Hugepages from /proc/meminfo");
- tst_exit();
- }
+ if (!f)
+ tst_brkm(TBROK, NULL,
+ "Could not get info about Total_Hugepages from /proc/meminfo");
if (!fgets(buf, 10, f)) {
fclose(f);
- tst_resm(TBROK, "Could not read Total_Hugepages from /proc/meminfo");
- tst_exit();
+ tst_brkm(TBROK, NULL,
+ "Could not read Total_Hugepages from /proc/meminfo");
}
pclose(f);
return(atoi(buf));
@@ -53,6 +50,26 @@ int get_no_of_hugepages() {
#endif
}
+int get_no_of_free_hugepages() {
+ #ifdef __linux__
+ FILE *f;
+ char buf[BUFSIZ];
+
+ f = popen("grep 'HugePages_Free' /proc/meminfo | cut -d ':' -f2 | tr -d ' \n'", "r");
+ if (!f)
+ tst_brkm(TBROK, NULL,
+ "Could not get info about HugePages_Free from /proc/meminfo");
+ if (!fgets(buf, 10, f)) {
+ fclose(f);
+ tst_brkm(TBROK, NULL,
+ "Could not read HugePages_Free from /proc/meminfo");
+ }
+ pclose(f);
+ return(atoi(buf));
+ #else
+ return -1;
+ #endif
+}
int hugepages_size() {
#ifdef __linux__
@@ -60,14 +77,13 @@ int hugepages_size() {
char buf[BUFSIZ];
f = popen("grep 'Hugepagesize' /proc/meminfo | cut -d ':' -f2 | tr -d 'kB \n'", "r");
- if (!f) {
- tst_resm(TBROK, "Could not get info about HugePages_Size from /proc/meminfo");
- tst_exit();
- }
+ if (!f)
+ tst_brkm(TBROK, NULL,
+ "Could not get info about HugePages_Size from /proc/meminfo");
if (!fgets(buf, 10, f)) {
fclose(f);
- tst_resm(TBROK, "Could not read HugePages_Size from /proc/meminfo");
- tst_exit();
+ tst_brkm(TBROK, NULL,
+ "Could not read HugePages_Size from /proc/meminfo");
}
pclose(f);
return(atoi(buf));
[-- Attachment #3: Type: text/plain, Size: 438 bytes --]
------------------------------------------------------------------------------
Benefiting from Server Virtualization: Beyond Initial Workload
Consolidation -- Increasing the use of server virtualization is a top
priority.Virtualization can reduce costs, simplify management, and improve
application availability and disaster protection. Learn more about boosting
the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev
[-- Attachment #4: Type: text/plain, Size: 155 bytes --]
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^ permalink raw reply related [flat|nested] 4+ messages in thread
* [LTP] [PATCH 2/2] hugemmap: use common header files
2011-04-21 7:13 ` [LTP] [PATCH 1/2] add get_no_of_free_hugepages function Caspar Zhang
@ 2011-04-21 7:13 ` Caspar Zhang
0 siblings, 0 replies; 4+ messages in thread
From: Caspar Zhang @ 2011-04-21 7:13 UTC (permalink / raw)
To: LTP List
[-- Attachment #1: Type: text/plain, Size: 601 bytes --]
there are some hugetlb related functions in
$(topdir)/include/system_specific_hugepages_info.h, this patch makes the
hugemmap tests use this common header so that codes can be simpler and
less overlaps.
Signed-off-by: Caspar Zhang <czhang@redhat.com>
---
testcases/kernel/mem/hugetlb/hugemmap/hugemmap01.c | 65 +------------------
testcases/kernel/mem/hugetlb/hugemmap/hugemmap02.c | 18 +++---
testcases/kernel/mem/hugetlb/hugemmap/hugemmap03.c | 18 +++---
testcases/kernel/mem/hugetlb/hugemmap/hugemmap04.c | 64 +------------------
4 files changed, 26 insertions(+), 139 deletions(-)
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0002-hugemmap-use-common-header-files.patch --]
[-- Type: text/x-patch; name="0002-hugemmap-use-common-header-files.patch", Size: 9938 bytes --]
diff --git a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap01.c b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap01.c
index 4b2cd30..874f736 100644
--- a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap01.c
+++ b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap01.c
@@ -72,6 +72,7 @@
#include "test.h"
#include "usctest.h"
+#include "system_specific_hugepages_info.h"
#define BUFFER_SIZE 256
@@ -87,8 +88,6 @@ int aftertest=0; /* Amount of free huge pages after testing */
int hugepagesmapped=0; /* Amount of huge pages mapped after testing */
void setup(); /* Main setup function of test */
-int getfreehugepages(); /* Reads free huge pages */
-int get_huge_pagesize(); /* Reads huge page size */
void cleanup(); /* cleanup function for the test */
void help()
@@ -135,10 +134,10 @@ main(int ac, char **av)
Tst_count=0;
/* Note the number of free huge pages BEFORE testing */
- beforetest = getfreehugepages();
+ beforetest = get_no_of_free_hugepages();
/* Note the size of huge page size BEFORE testing */
- page_sz = get_huge_pagesize();
+ page_sz = hugepages_size();
/*
* Call mmap
@@ -160,7 +159,7 @@ main(int ac, char **av)
}
/* Make sure the number of free huge pages AFTER testing decreased */
- aftertest = getfreehugepages();
+ aftertest = get_no_of_free_hugepages();
hugepagesmapped = beforetest - aftertest;
if (hugepagesmapped < 1) {
tst_resm(TWARN,"Number of HUGEPAGES_FREE stayed the same. Okay if");
@@ -205,62 +204,6 @@ setup()
}
/*
- * getfreehugepages() - Reads the number of free huge pages from /proc/meminfo
- */
-int
-getfreehugepages()
-{
- int hugefree;
- FILE* f;
- int retcode=0;
- char buff[BUFFER_SIZE];
-
- f = fopen("/proc/meminfo", "r");
- if (!f)
- tst_brkm(TFAIL, cleanup, "Could not open /proc/meminfo for reading");
-
- while (fgets(buff,BUFFER_SIZE, f) != NULL) {
- if ((retcode = sscanf(buff, "HugePages_Free: %d ", &hugefree)) == 1)
- break;
- }
-
- if (retcode != 1) {
- fclose(f);
- tst_brkm(TFAIL, cleanup, "Failed reading number of huge pages free.");
- }
- fclose(f);
- return(hugefree);
-}
-
-/*
- * get_huge_pagesize() - Reads the size of huge page size from /proc/meminfo
- */
-int
-get_huge_pagesize()
-{
- int hugesize;
- FILE* f;
- int retcode=0;
- char buff[BUFFER_SIZE];
-
- f = fopen("/proc/meminfo", "r");
- if (!f)
- tst_brkm(TFAIL, cleanup, "Could not open /proc/meminfo for reading");
-
- while (fgets(buff,BUFFER_SIZE, f) != NULL) {
- if ((retcode = sscanf(buff, "Hugepagesize: %d ", &hugesize)) == 1)
- break;
- }
-
- if (retcode != 1) {
- fclose(f);
- tst_brkm(TFAIL, cleanup, "Failed reading size of huge page.");
- }
- fclose(f);
- return(hugesize);
-}
-
-/*
* cleanup() - performs all ONE TIME cleanup for this test at
* completion or premature exit.
* Remove the temporary directory created.
diff --git a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap02.c b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap02.c
index ce4cdac..45cddf7 100644
--- a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap02.c
+++ b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap02.c
@@ -62,10 +62,8 @@
#include "test.h"
#include "usctest.h"
+#include "system_specific_hugepages_info.h"
-#define PAGE_SIZE ((1UL) << 12) /* Normal page size */
-#define HPAGE_SIZE ((1UL) << 24) /* Huge page size */
-#define MAP_SIZE (2*HPAGE_SIZE) /* Huge map page size */
#define LOW_ADDR (void *)(0x80000000)
#define LOW_ADDR2 (void *)(0x90000000)
@@ -95,6 +93,7 @@ main(int ac, char **av)
int lc;
char *msg;
int Hflag = 0;
+ int page_sz, map_sz;
option_t options[] = {
{ "H:", &Hflag, &Hopt }, /* Required for location of hugetlbfs */
@@ -110,6 +109,9 @@ main(int ac, char **av)
"-H option is REQUIRED for this test, use -h for options help");
}
+ page_sz = getpagesize();
+ map_sz = 2 * 1024 * hugepages_size();
+
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
@@ -138,14 +140,14 @@ main(int ac, char **av)
/* mmap using normal pages and a low memory address */
errno = 0;
- addr = mmap(LOW_ADDR, PAGE_SIZE, PROT_READ,
+ addr = mmap(LOW_ADDR, page_sz, PROT_READ,
MAP_SHARED | MAP_FIXED, nfildes, 0);
if (addr == MAP_FAILED)
tst_brkm(TBROK, cleanup,"mmap failed on nfildes");
/* Attempt to mmap a huge page into a low memory address */
errno = 0;
- addr2 = mmap(LOW_ADDR2, MAP_SIZE, PROT_READ | PROT_WRITE,
+ addr2 = mmap(LOW_ADDR2, map_sz, PROT_READ | PROT_WRITE,
MAP_SHARED, fildes, 0);
#if __WORDSIZE == 64 /* 64-bit process */
@@ -177,11 +179,11 @@ main(int ac, char **av)
}
#if __WORDSIZE == 64
- if (munmap(addr2, MAP_SIZE) == -1) {
+ if (munmap(addr2, map_sz) == -1) {
tst_brkm(TFAIL|TERRNO, NULL, "huge munmap failed");
}
#endif
- if (munmap(addr, PAGE_SIZE) == -1) {
+ if (munmap(addr, page_sz) == -1) {
tst_brkm(TFAIL|TERRNO, NULL, "munmap failed");
}
@@ -231,4 +233,4 @@ cleanup()
unlink(TEMPFILE);
tst_rmdir();
-}
\ No newline at end of file
+}
diff --git a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap03.c b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap03.c
index c1479fe..cac94b0 100644
--- a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap03.c
+++ b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap03.c
@@ -53,8 +53,8 @@
#include "test.h"
#include "usctest.h"
+#include "system_specific_hugepages_info.h"
-#define PAGE_SIZE ((1UL) << 12) /* Normal page size */
#define HIGH_ADDR (void *)(0x1000000000000)
char* TEMPFILE="mmapfile";
@@ -76,15 +76,14 @@ void help()
int
main(int ac, char **av)
{
-#if __WORDSIZE==32 /* 32-bit compiled */
- tst_resm(TCONF,"This test is only for 64bit");
- tst_exit();
-
- return 1;
-#else /* 64-bit compiled */
int lc; /* loop counter */
char *msg; /* message returned from parse_opts */
int Hflag=0; /* binary flag: opt or not */
+ int page_sz;
+
+#if __WORDSIZE==32 /* 32-bit compiled */
+ tst_brkm(TCONF, NULL, "This test is only for 64bit");
+#endif
option_t options[] = {
{ "H:", &Hflag, &Hopt }, /* Required for location of hugetlbfs */
@@ -103,6 +102,8 @@ main(int ac, char **av)
tst_exit();
}
+ page_sz = getpagesize();
+
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
@@ -118,7 +119,7 @@ main(int ac, char **av)
/* Attempt to mmap using normal pages and a high memory address */
errno = 0;
- addr = mmap(HIGH_ADDR, PAGE_SIZE, PROT_READ,
+ addr = mmap(HIGH_ADDR, page_sz, PROT_READ,
MAP_SHARED | MAP_FIXED, fildes, 0);
if (addr != MAP_FAILED) {
tst_resm(TFAIL, "Normal mmap() into high region unexpectedly succeeded on %s, errno=%d : %s",
@@ -135,7 +136,6 @@ main(int ac, char **av)
cleanup();
tst_exit();
-#endif
}
/*
diff --git a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap04.c b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap04.c
index b6c6988..4cc6ed4 100644
--- a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap04.c
+++ b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap04.c
@@ -90,8 +90,6 @@ int hugepagesmapped=0; /* Amount of huge pages mapped after testing */
char *Hopt; /* location of hugetlbfs */
void setup(); /* Main setup function of test */
-int getfreehugepages(); /* Reads free huge pages */
-int get_huge_pagesize(); /* Reads huge page size */
void cleanup(); /* cleanup function for the test */
void help()
@@ -142,11 +140,11 @@ main(int ac, char **av)
Tst_count=0;
/* Note the number of free huge pages BEFORE testing */
- freepages = getfreehugepages();
+ freepages = get_no_of_free_hugepages();
beforetest = freepages;
/* Note the size of huge page size BEFORE testing */
- huge_pagesize = get_huge_pagesize();
+ huge_pagesize = hugepages_size();
tst_resm(TINFO,"Size of huge pages is %d KB",huge_pagesize);
#if __WORDSIZE==32
@@ -176,7 +174,7 @@ main(int ac, char **av)
}
/* Make sure the number of free huge pages AFTER testing decreased */
- aftertest = getfreehugepages();
+ aftertest = get_no_of_free_hugepages();
hugepagesmapped = beforetest - aftertest;
if (hugepagesmapped < 1) {
tst_resm(TWARN,"Number of HUGEPAGES_FREE stayed the same. Okay if");
@@ -221,62 +219,6 @@ setup()
}
/*
- * getfreehugepages() - Reads the number of free huge pages from /proc/meminfo
- */
-int
-getfreehugepages()
-{
- int hugefree;
- FILE* f;
- int retcode=0;
- char buff[BUFFER_SIZE];
-
- f = fopen("/proc/meminfo", "r");
- if (!f)
- tst_brkm(TFAIL, cleanup, "Could not open /proc/meminfo for reading");
-
- while (fgets(buff,BUFFER_SIZE, f) != NULL) {
- if ((retcode = sscanf(buff, "HugePages_Free: %d ", &hugefree)) == 1)
- break;
- }
-
- if (retcode != 1) {
- fclose(f);
- tst_brkm(TFAIL, cleanup, "Failed reading number of huge pages free.");
- }
- fclose(f);
- return(hugefree);
-}
-
-/*
- * get_huge_pagesize() - Reads the size of huge page size from /proc/meminfo
-*/
-int
-get_huge_pagesize()
-{
- int hugesize;
- FILE* f;
- int retcode=0;
- char buff[BUFFER_SIZE];
-
- f = fopen("/proc/meminfo", "r");
- if (!f)
- tst_brkm(TFAIL, cleanup, "Could not open /proc/meminfo for reading");
-
- while (fgets(buff,BUFFER_SIZE, f) != NULL) {
- if ((retcode = sscanf(buff, "Hugepagesize: %d ", &hugesize)) == 1)
- break;
- }
-
- if (retcode != 1) {
- fclose(f);
- tst_brkm(TFAIL, cleanup, "Failed reading size of huge page.");
- }
- fclose(f);
- return(hugesize);
-}
-
-/*
* cleanup() - performs all ONE TIME cleanup for this test at
* completion or premature exit.
* Remove the temporary directory created.
[-- Attachment #3: Type: text/plain, Size: 438 bytes --]
------------------------------------------------------------------------------
Benefiting from Server Virtualization: Beyond Initial Workload
Consolidation -- Increasing the use of server virtualization is a top
priority.Virtualization can reduce costs, simplify management, and improve
application availability and disaster protection. Learn more about boosting
the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev
[-- Attachment #4: Type: text/plain, Size: 155 bytes --]
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^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [LTP] [PATCH 0/2] use system_specific_hugepages_info.h/.c
2011-04-21 7:13 [LTP] [PATCH 0/2] use system_specific_hugepages_info.h/.c Caspar Zhang
2011-04-21 7:13 ` [LTP] [PATCH 1/2] add get_no_of_free_hugepages function Caspar Zhang
@ 2011-04-22 3:26 ` Garrett Cooper
1 sibling, 0 replies; 4+ messages in thread
From: Garrett Cooper @ 2011-04-22 3:26 UTC (permalink / raw)
To: Caspar Zhang; +Cc: LTP List
On Thu, Apr 21, 2011 at 12:13 AM, Caspar Zhang <czhang@redhat.com> wrote:
>
> I found some tests in hugemmap uses
> $(topdir)/include/system_specific_hugepages_info.h while some others not.
> I also find some function overlaps in hugemmap tests, like getting
> hugepagesize or getting free hugepages, I believe we could move all these
> funtions to system_specific_hugepages_info.c and make the code simpler and
> cleaner.
Committed -- thanks!
-Garrett
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end of thread, other threads:[~2011-04-22 3:27 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2011-04-21 7:13 ` [LTP] [PATCH 2/2] hugemmap: use common header files Caspar Zhang
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