diff options
Diffstat (limited to 'src/readahead/readahead-collect.c')
| -rw-r--r-- | src/readahead/readahead-collect.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/src/readahead/readahead-collect.c b/src/readahead/readahead-collect.c index 5d07f4704a..5d22949a12 100644 --- a/src/readahead/readahead-collect.c +++ b/src/readahead/readahead-collect.c @@ -42,6 +42,7 @@ #include <sys/vfs.h> #include <getopt.h> #include <sys/inotify.h> +#include <math.h> #ifdef HAVE_FANOTIFY_INIT #include <sys/fanotify.h> @@ -67,6 +68,7 @@ */ static ReadaheadShared *shared = NULL; +static struct timespec starttime; /* Avoid collisions with the NULL pointer */ #define SECTOR_TO_PTR(s) ULONG_TO_PTR((s)+1) @@ -205,6 +207,7 @@ static unsigned long fd_first_block(int fd) { struct item { const char *path; unsigned long block; + unsigned long bin; }; static int qsort_compare(const void *a, const void *b) { @@ -213,6 +216,13 @@ static int qsort_compare(const void *a, const void *b) { i = a; j = b; + /* sort by bin first */ + if (i->bin < j->bin) + return -1; + if (i->bin > j->bin) + return 1; + + /* then sort by sector */ if (i->block < j->block) return -1; if (i->block > j->block) @@ -250,6 +260,8 @@ static int collect(const char *root) { goto finish; } + clock_gettime(CLOCK_MONOTONIC, &starttime); + /* If there's no pack file yet we lower the kernel readahead * so that mincore() is accurate. If there is a pack file * already we assume it is accurate enough so that kernel @@ -447,10 +459,21 @@ static int collect(const char *root) { free(p); else { unsigned long ul; + struct timespec ts; + struct item *entry; + + entry = new0(struct item, 1); ul = fd_first_block(m->fd); - if ((k = hashmap_put(files, p, SECTOR_TO_PTR(ul))) < 0) { + clock_gettime(CLOCK_MONOTONIC, &ts); + + entry->block = ul; + entry->path = strdup(p); + entry->bin = round((ts.tv_sec - starttime.tv_sec + + ((ts.tv_nsec - starttime.tv_nsec) / 1000000000.0)) / 2.0); + + if ((k = hashmap_put(files, p, entry)) < 0) { log_warning("set_put() failed: %s", strerror(-k)); free(p); } @@ -518,8 +541,7 @@ done: j = ordered; HASHMAP_FOREACH_KEY(q, p, files, i) { - j->path = p; - j->block = PTR_TO_SECTOR(q); + memcpy(j, q, sizeof(struct item)); j++; } |