Merge branch 'master' of ssh://router/data/git/fio
[fio.git] / init.c
diff --git a/init.c b/init.c
index e53f103f65bf1f8f6659fe51a2b9d97d1cda72c4..12913615d21874619129514e59b138e60518e555 100644 (file)
--- a/init.c
+++ b/init.c
@@ -17,8 +17,9 @@
 #include "fio.h"
 #include "parse.h"
 #include "smalloc.h"
+#include "filehash.h"
 
-static char fio_version_string[] = "fio 1.19";
+static char fio_version_string[] = "fio 1.21-rc2";
 
 #define FIO_RANDSEED           (0xb1899bedUL)
 
@@ -40,18 +41,20 @@ char *job_section = NULL;
 int write_bw_log = 0;
 int read_only = 0;
 
-static int def_timeout = 0;
-static int write_lat_log = 0;
+static int def_timeout;
+static int write_lat_log;
 
 static int prev_group_jobs;
 
 unsigned long fio_debug = 0;
+unsigned int fio_debug_jobno = -1;
+unsigned int *fio_debug_jobp = NULL;
 
 /*
  * Command line options. These will contain the above, plus a few
  * extra that only pertain to fio itself and not jobs.
  */
-static struct option long_options[FIO_NR_OPTIONS] = {
+static struct option l_opts[FIO_NR_OPTIONS] = {
        {
                .name           = "output",
                .has_arg        = required_argument,
@@ -117,6 +120,11 @@ static struct option long_options[FIO_NR_OPTIONS] = {
                .has_arg        = required_argument,
                .val            = 'x',
        },
+       {
+               .name           = "alloc-size",
+               .has_arg        = required_argument,
+               .val            = 'a',
+       },
        {
                .name           = NULL,
        },
@@ -207,12 +215,10 @@ static int fixup_options(struct thread_data *td)
        struct thread_options *o = &td->o;
 
        if (read_only && td_write(td)) {
-               log_err("fio: job <%s> has write bit set, but fio is in read-only mode\n", td->o.name);
+               log_err("fio: job <%s> has write bit set, but fio is in"
+                       " read-only mode\n", td->o.name);
                return 1;
        }
-       
-       if (o->rwmix[DDIR_READ] + o->rwmix[DDIR_WRITE] > 100)
-               o->rwmix[DDIR_WRITE] = 100 - o->rwmix[DDIR_READ];
 
        if (o->write_iolog_file && o->read_iolog_file) {
                log_err("fio: read iolog overrides write_iolog\n");
@@ -233,11 +239,11 @@ static int fixup_options(struct thread_data *td)
                o->overwrite = 1;
 
        if (!o->min_bs[DDIR_READ])
-               o->min_bs[DDIR_READ]= o->bs[DDIR_READ];
+               o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
        if (!o->max_bs[DDIR_READ])
                o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
        if (!o->min_bs[DDIR_WRITE])
-               o->min_bs[DDIR_WRITE]= o->bs[DDIR_WRITE];
+               o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
        if (!o->max_bs[DDIR_WRITE])
                o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 
@@ -302,11 +308,14 @@ static int fixup_options(struct thread_data *td)
 
        if (o->fill_device && !o->size)
                o->size = ULONG_LONG_MAX;
-       
+
        if (td_rw(td) && td->o.verify != VERIFY_NONE)
                log_info("fio: mixed read/write workload with verify. May not "
                 "work as expected, unless you pre-populated the file\n");
 
+       if (td->o.verify != VERIFY_NONE)
+               td->o.refill_buffers = 1;
+
        return 0;
 }
 
@@ -444,14 +453,15 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
                td->io_ops->flags |= FIO_RAWIO;
 
        file_alloced = 0;
-       if (!td->o.filename && !td->files_index) {
+       if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
                file_alloced = 1;
 
                if (td->o.nr_files == 1 && exists_and_not_file(jobname))
                        add_file(td, jobname);
                else {
                        for (i = 0; i < td->o.nr_files; i++) {
-                               sprintf(fname, "%s.%d.%d", jobname, td->thread_number, i);
+                               sprintf(fname, "%s.%d.%d", jobname,
+                                                       td->thread_number, i);
                                add_file(td, fname);
                        }
                }
@@ -501,9 +511,12 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 
        if (!terse_output) {
                if (!job_add_num) {
-                       if (!strcmp(td->io_ops->name, "cpuio"))
-                               log_info("%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->o.name, td->o.cpuload, td->o.cpucycle);
-                       else {
+                       if (!strcmp(td->io_ops->name, "cpuio")) {
+                               log_info("%s: ioengine=cpu, cpuload=%u,"
+                                        " cpucycle=%u\n", td->o.name,
+                                                       td->o.cpuload,
+                                                       td->o.cpucycle);
+                       } else {
                                char *c1, *c2, *c3, *c4;
 
                                c1 = to_kmg(td->o.min_bs[DDIR_READ]);
@@ -511,7 +524,13 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
                                c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
                                c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
 
-                               log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->o.name, td->groupid, ddir_str[td->o.td_ddir], c1, c2, c3, c4, td->io_ops->name, td->o.iodepth);
+                               log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
+                                        " ioengine=%s, iodepth=%u\n",
+                                               td->o.name, td->groupid,
+                                               ddir_str[td->o.td_ddir],
+                                               c1, c2, c3, c4,
+                                               td->io_ops->name,
+                                               td->o.iodepth);
 
                                free(c1);
                                free(c2);
@@ -635,7 +654,8 @@ static int parse_jobs_ini(char *file, int stonewall_flag)
                if (sscanf(p, "[%255s]", name) != 1) {
                        if (inside_skip)
                                continue;
-                       log_err("fio: option <%s> outside of [] job section\n", p);
+                       log_err("fio: option <%s> outside of [] job section\n",
+                                                                       p);
                        break;
                }
 
@@ -739,8 +759,12 @@ static void free_shm(void)
        struct shmid_ds sbuf;
 
        if (threads) {
-               shmdt((void *) threads);
+               void *tp = threads;
+
                threads = NULL;
+               file_hash_exit();
+               fio_debug_jobp = NULL;
+               shmdt(tp);
                shmctl(shm_id, IPC_RMID, &sbuf);
        }
 
@@ -750,10 +774,13 @@ static void free_shm(void)
 /*
  * The thread area is shared between the main process and the job
  * threads/processes. So setup a shared memory segment that will hold
- * all the job info.
+ * all the job info. We use the end of the region for keeping track of
+ * open files across jobs, for file sharing.
  */
 static int setup_thread_area(void)
 {
+       void *hash;
+
        /*
         * 1024 is too much on some machines, scale max_jobs if
         * we get a failure that looks like too large a shm segment
@@ -761,6 +788,9 @@ static int setup_thread_area(void)
        do {
                size_t size = max_jobs * sizeof(struct thread_data);
 
+               size += file_hash_size;
+               size += sizeof(unsigned int);
+
                shm_id = shmget(0, size, IPC_CREAT | 0600);
                if (shm_id != -1)
                        break;
@@ -782,6 +812,10 @@ static int setup_thread_area(void)
        }
 
        memset(threads, 0, max_jobs * sizeof(struct thread_data));
+       hash = (void *) threads + max_jobs * sizeof(struct thread_data);
+       fio_debug_jobp = (void *) hash + file_hash_size;
+       *fio_debug_jobp = -1;
+       file_hash_init(hash);
        atexit(free_shm);
        return 0;
 }
@@ -798,12 +832,16 @@ static void usage(const char *name)
        printf("\t--minimal\tMinimal (terse) output\n");
        printf("\t--version\tPrint version info and exit\n");
        printf("\t--help\t\tPrint this page\n");
-       printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
+       printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of"
+               " them\n");
        printf("\t--showcmd\tTurn a job file into command line options\n");
        printf("\t--eta=when\tWhen ETA estimate should be printed\n");
        printf("\t          \tMay be \"always\", \"never\" or \"auto\"\n");
-       printf("\t--readonly\tTurn on safety read-only checks, preventing writes\n");
+       printf("\t--readonly\tTurn on safety read-only checks, preventing"
+               " writes\n");
        printf("\t--section=name\tOnly run specified section in job file\n");
+       printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
+               " (def 1024)\n");
 }
 
 #ifdef FIO_INC_DEBUG
@@ -816,6 +854,8 @@ struct debug_level debug_levels[] = {
        { .name = "verify",     .shift = FD_VERIFY },
        { .name = "random",     .shift = FD_RANDOM },
        { .name = "parse",      .shift = FD_PARSE },
+       { .name = "diskutil",   .shift = FD_DISKUTIL },
+       { .name = "job",        .shift = FD_JOB },
        { },
 };
 
@@ -836,22 +876,38 @@ static int set_debug(const char *string)
                }
                log_info("all\n");
                return 1;
-       } else if (!strcmp(string, "all")) {
-               fio_debug = ~0UL;
-               return 0;
        }
 
        while ((opt = strsep(&p, ",")) != NULL) {
                int found = 0;
 
+               if (!strncmp(opt, "all", 3)) {
+                       log_info("fio: set all debug options\n");
+                       fio_debug = ~0UL;
+                       continue;
+               }
+
                for (i = 0; debug_levels[i].name; i++) {
                        dl = &debug_levels[i];
-                       if (!strncmp(opt, dl->name, strlen(opt))) {
+                       found = !strncmp(opt, dl->name, strlen(dl->name));
+                       if (!found)
+                               continue;
+
+                       if (dl->shift == FD_JOB) {
+                               opt = strchr(opt, ':');
+                               if (!opt) {
+                                       log_err("fio: missing job number\n");
+                                       break;
+                               }
+                               opt++;
+                               fio_debug_jobno = atoi(opt);
+                               log_info("fio: set debug jobno %d\n",
+                                                       fio_debug_jobno);
+                       } else {
                                log_info("fio: set debug option %s\n", opt);
-                               found = 1;
                                fio_debug |= (1UL << dl->shift);
-                               break;
                        }
+                       break;
                }
 
                if (!found)
@@ -872,8 +928,11 @@ static int parse_cmd_line(int argc, char *argv[])
        struct thread_data *td = NULL;
        int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
 
-       while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) {
+       while ((c = getopt_long_only(argc, argv, "", l_opts, &lidx)) != -1) {
                switch (c) {
+               case 'a':
+                       smalloc_pool_size = atoi(optarg);
+                       break;
                case 't':
                        def_timeout = atoi(optarg);
                        break;
@@ -920,7 +979,8 @@ static int parse_cmd_line(int argc, char *argv[])
                        break;
                case 'x':
                        if (!strcmp(optarg, "global")) {
-                               log_err("fio: can't use global as only section\n");
+                               log_err("fio: can't use global as only "
+                                       "section\n");
                                do_exit++;
                                exit_val = 1;
                                break;
@@ -930,7 +990,7 @@ static int parse_cmd_line(int argc, char *argv[])
                        job_section = strdup(optarg);
                        break;
                case FIO_GETOPT_JOB: {
-                       const char *opt = long_options[lidx].name;
+                       const char *opt = l_opts[lidx].name;
                        char *val = optarg;
 
                        if (!strncmp(opt, "name", 4) && td) {
@@ -993,7 +1053,7 @@ int parse_options(int argc, char *argv[])
        f_out = stdout;
        f_err = stderr;
 
-       fio_options_dup_and_init(long_options);
+       fio_options_dup_and_init(l_opts);
 
        if (setup_thread_area())
                return 1;