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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:49:25 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:49:25 +0000
commit464df1d5e5ab1322e2dd0a7796939fff1aeefa9a (patch)
tree6a403684e0978f0287d7f0ec0e5aab1fd31a59e1 /e2fsck/iscan.c
parentInitial commit. (diff)
downloade2fsprogs-db58a52ab489b66cea7224323c4c6171ccc2a9dd.tar.xz
e2fsprogs-db58a52ab489b66cea7224323c4c6171ccc2a9dd.zip
Adding upstream version 1.47.0.upstream/1.47.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'e2fsck/iscan.c')
-rw-r--r--e2fsck/iscan.c265
1 files changed, 265 insertions, 0 deletions
diff --git a/e2fsck/iscan.c b/e2fsck/iscan.c
new file mode 100644
index 0000000..33c6a4c
--- /dev/null
+++ b/e2fsck/iscan.c
@@ -0,0 +1,265 @@
+/*
+ * Test to see how quickly we can scan the inode table (not doing
+ * anything else)
+ */
+
+#include "config.h"
+#include <string.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <termios.h>
+#include <time.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
+#include <unistd.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <sys/ioctl.h>
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+#include <sys/time.h>
+#include <sys/resource.h>
+
+#if EXT2_FLAT_INCLUDES
+#include "ext2_fs.h"
+#include "ext2fs.h"
+#include "blkid.h"
+#else
+#include "ext2fs/ext2_fs.h"
+#include "ext2fs/ext2fs.h"
+#include "blkid/blkid.h"
+#endif
+
+#include "et/com_err.h"
+#include "../version.h"
+
+struct resource_track {
+ struct timeval time_start;
+ struct timeval user_start;
+ struct timeval system_start;
+ void *brk_start;
+ unsigned long long bytes_read;
+ unsigned long long bytes_written;
+};
+
+extern int isatty(int);
+
+const char * program_name = "iscan";
+const char * device_name = NULL;
+
+int yflag = 0;
+int nflag = 0;
+int preen = 0;
+int inode_buffer_blocks = 0;
+int invalid_bitmaps = 0;
+
+struct resource_track global_rtrack;
+
+void init_resource_track(struct resource_track *track, io_channel channel)
+{
+#ifdef HAVE_GETRUSAGE
+ struct rusage r;
+#endif
+ io_stats io_start = 0;
+
+ track->brk_start = sbrk(0);
+ gettimeofday(&track->time_start, 0);
+#ifdef HAVE_GETRUSAGE
+#ifdef sun
+ memset(&r, 0, sizeof(struct rusage));
+#endif
+ getrusage(RUSAGE_SELF, &r);
+ track->user_start = r.ru_utime;
+ track->system_start = r.ru_stime;
+#else
+ track->user_start.tv_sec = track->user_start.tv_usec = 0;
+ track->system_start.tv_sec = track->system_start.tv_usec = 0;
+#endif
+ track->bytes_read = 0;
+ track->bytes_written = 0;
+ if (channel && channel->manager && channel->manager->get_stats)
+ channel->manager->get_stats(channel, &io_start);
+ if (io_start) {
+ track->bytes_read = io_start->bytes_read;
+ track->bytes_written = io_start->bytes_written;
+ }
+}
+
+static float timeval_subtract(struct timeval *tv1,
+ struct timeval *tv2)
+{
+ return ((tv1->tv_sec - tv2->tv_sec) +
+ ((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000);
+}
+
+void print_resource_track(const char *desc,
+ struct resource_track *track, io_channel channel)
+{
+#ifdef HAVE_GETRUSAGE
+ struct rusage r;
+#endif
+ struct timeval time_end;
+
+ gettimeofday(&time_end, 0);
+
+ if (desc)
+ printf("%s: ", desc);
+
+#define kbytes(x) (((unsigned long long)(x) + 1023) / 1024)
+#ifdef HAVE_MALLINFO2
+ if (1) {
+ struct mallinfo2 malloc_info = mallinfo2();
+
+ printf("Memory used: %lluk/%lluk (%lluk/%lluk), ",
+ kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd),
+ kbytes(malloc_info.uordblks),
+ kbytes(malloc_info.fordblks));
+ } else
+#elif defined HAVE_MALLINFO
+ /* don't use mallinfo() if over 2GB used, since it returns "int" */
+ if ((char *)sbrk(0) - (char *)track->brk_start < 2LL << 30) {
+ struct mallinfo malloc_info = mallinfo();
+
+ printf("Memory used: %lluk/%lluk (%lluk/%lluk), ",
+ kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd),
+ kbytes(malloc_info.uordblks),
+ kbytes(malloc_info.fordblks));
+ } else
+#endif
+ printf("Memory used: %lluk, ",
+ kbytes(((char *)sbrk(0)) - ((char *)track->brk_start)));
+
+#ifdef HAVE_GETRUSAGE
+ getrusage(RUSAGE_SELF, &r);
+
+ printf("time: %5.2f/%5.2f/%5.2f\n",
+ timeval_subtract(&time_end, &track->time_start),
+ timeval_subtract(&r.ru_utime, &track->user_start),
+ timeval_subtract(&r.ru_stime, &track->system_start));
+#else
+ printf("elapsed time: %6.3f\n",
+ timeval_subtract(&time_end, &track->time_start));
+#endif
+#define mbytes(x) (((x) + 1048575) / 1048576)
+ if (channel && channel->manager && channel->manager->get_stats) {
+ io_stats delta = 0;
+ unsigned long long bytes_read = 0;
+ unsigned long long bytes_written = 0;
+
+ if (desc)
+ printf("%s: ", desc);
+
+ channel->manager->get_stats(channel, &delta);
+ if (delta) {
+ bytes_read = delta->bytes_read - track->bytes_read;
+ bytes_written = delta->bytes_written -
+ track->bytes_written;
+ }
+ printf("I/O read: %lluMB, write: %lluMB, "
+ "rate: %.2fMB/s\n",
+ mbytes(bytes_read), mbytes(bytes_written),
+ (double)mbytes(bytes_read + bytes_written) /
+ timeval_subtract(&time_end, &track->time_start));
+ }
+}
+
+static void usage(void)
+{
+ fprintf(stderr,
+ "Usage: %s [-F] [-I inode_buffer_blocks] device\n",
+ program_name);
+ exit(1);
+}
+
+static void PRS(int argc, char *argv[])
+{
+ int flush = 0;
+ int c;
+#ifdef MTRACE
+ extern void *mallwatch;
+#endif
+ errcode_t retval;
+
+ setbuf(stdout, NULL);
+ setbuf(stderr, NULL);
+ initialize_ext2_error_table();
+
+ if (argc && *argv)
+ program_name = *argv;
+ while ((c = getopt (argc, argv, "FI")) != EOF)
+ switch (c) {
+ case 'F':
+ flush = 1;
+ break;
+ case 'I':
+ inode_buffer_blocks = atoi(optarg);
+ break;
+ default:
+ usage ();
+ }
+ device_name = argv[optind];
+ if (flush) {
+ int fd = open(device_name, O_RDONLY, 0);
+
+ if (fd < 0) {
+ com_err("open", errno,
+ "while opening %s for flushing", device_name);
+ exit(1);
+ }
+ if ((retval = ext2fs_sync_device(fd, 1))) {
+ com_err("ext2fs_sync_device", retval,
+ "while trying to flush %s", device_name);
+ exit(1);
+ }
+ close(fd);
+ }
+}
+
+int main (int argc, char *argv[])
+{
+ errcode_t retval = 0;
+ int exit_value = 0;
+ ext2_filsys fs;
+ ext2_ino_t ino;
+ __u32 num_inodes = 0;
+ struct ext2_inode inode;
+ ext2_inode_scan scan;
+
+ PRS(argc, argv);
+
+ retval = ext2fs_open(device_name, 0,
+ 0, 0, unix_io_manager, &fs);
+ if (retval) {
+ com_err(program_name, retval, "while trying to open '%s'",
+ device_name);
+ exit(1);
+ }
+
+ init_resource_track(&global_rtrack, fs->io);
+
+ retval = ext2fs_open_inode_scan(fs, inode_buffer_blocks, &scan);
+ if (retval) {
+ com_err(program_name, retval, "while opening inode scan");
+ exit(1);
+ }
+
+ while (1) {
+ retval = ext2fs_get_next_inode(scan, &ino, &inode);
+ if (retval) {
+ com_err(program_name, retval,
+ "while getting next inode");
+ exit(1);
+ }
+ if (ino == 0)
+ break;
+ num_inodes++;
+ }
+
+ print_resource_track(NULL, &global_rtrack, fs->io);
+ printf("%u inodes scanned.\n", num_inodes);
+
+ exit(0);
+}