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Updated test0 with a forktest. Fixed timeslices. Updated kmem usage calculations.

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- test0 now forks 16 tasks that each modify a global variable.
- scheduler now gives 1/10th of a second per task. It also does not increase timeslice
  of a task that has scheduled.
- When a memory is granted to the kernel, the distribution of this memory to memcaches
  was calculated in a complicated way. This is now simplified.
This commit is contained in:
Bahadir Balban
2008-09-17 15:19:37 +03:00
parent cb9c5438e2
commit 1ea21d84bd
10 changed files with 75 additions and 59 deletions
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1
tasks/libmem/mm/alloc_page.h
View File

@@ -25,7 +25,6 @@ void init_page_allocator(unsigned long start, unsigned long end);
/* Page allocation functions */
void *alloc_page(int quantity);
void *zalloc_page(int quantity);
int free_page(void *paddr);
#endif /* __ALLOC_PAGE_H__ */

1
tasks/test0/include/tests.h
View File

@@ -4,6 +4,7 @@
#define __TASKNAME__ "test0"
int shmtest(void);
int forktest(void);
int mmaptest(void);
int dirtest(void);
int fileio(void);

10
tasks/test0/main.c
View File

@@ -38,13 +38,19 @@ void main(void)
printf("Error forking...\n");
if (pid == 0) {
printf("File IO test 1, done by child:\n");
printf("Child: file IO test 1.\n");
if (fileio() == 0)
printf("-- PASSED --\n");
else
printf("-- FAILED --\n");
printf("Child: forktest.\n");
if (forktest() == 0)
printf("-- PASSED -- \n");
else
printf("-- FAILED -- \n");
} else {
printf("File IO test 2, done by parent, with child pid %d:\n", pid);
printf("Parent: file IO test 2. child pid %d:\n", pid);
if (fileio2() == 0)
printf("-- PASSED --\n");
else

22
tasks/test0/src/fileio.c
View File

@@ -6,7 +6,6 @@
#include <fcntl.h>
#include <string.h>
#include <tests.h>
#include <l4lib/arch/syslib.h>
int fileio2(void)
{
@@ -15,10 +14,10 @@ int fileio2(void)
int err;
char buf[128];
off_t offset;
int tid = self_tid();
int tid = getpid();
char *str = "I WROTE TO THIS FILE\n";
memset(buf, 0, 128);
if ((fd = open("/home/bahadir/newfile2.txt", O_RDWR | O_CREAT | O_TRUNC, S_IRWXU)) < 0) {
perror("OPEN");
return -1;
@@ -56,8 +55,12 @@ int fileio2(void)
printf("%d: Read: %d bytes from file.\n", tid, cnt);
if (cnt) {
printf("%d: Read string: %s\n", tid, buf);
if (strcmp(buf, str))
if (strcmp(buf, str)) {
printf("Error: strings not the same:\n");
printf("str: %s\n", str);
printf("buf: %s\n", buf);
return -1;
}
}
printf("%d: close.\n", tid);
@@ -76,10 +79,10 @@ int fileio(void)
int err;
char buf[128];
off_t offset;
int tid = self_tid();
int tid = getpid();
char *str = "I WROTE TO THIS FILE\n";
memset(buf, 0, 128);
if ((fd = open("/home/bahadir/newfile.txt", O_RDWR | O_CREAT | O_TRUNC, S_IRWXU)) < 0) {
perror("OPEN");
return -1;
@@ -106,8 +109,12 @@ int fileio(void)
printf("%d: Read: %d bytes from file.\n", tid, cnt);
if (cnt) {
printf("%d: Read string: %s\n", tid, buf);
if (strcmp(buf, str))
if (strcmp(buf, str)) {
printf("Strings not the same:\n");
printf("Str: %s\n", str);
printf("Buf: %s\n", buf);
return -1;
}
}
printf("%d: close.\n", tid);
@@ -115,7 +122,6 @@ int fileio(void)
perror("CLOSE");
return -1;
}
return 0;
}