Add pre_read option
[fio.git] / options.c
index bb77683d06c0cbba39cdfa7069f7d1b22d1b400a..a45d1af6b7d9f17c316def4b0bfa6d48b515763e 100644 (file)
--- a/options.c
+++ b/options.c
@@ -5,10 +5,14 @@
 #include <string.h>
 #include <getopt.h>
 #include <assert.h>
+#include <libgen.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 
 #include "fio.h"
 #include "parse.h"
-#include "fls.h"
+#include "lib/fls.h"
 
 #define td_var_offset(var)     ((size_t) &((struct thread_options *)0)->var)
 
@@ -36,21 +40,16 @@ static int bs_cmp(const void *p1, const void *p2)
        return bsp1->perc < bsp2->perc;
 }
 
-static int str_bssplit_cb(void *data, const char *input)
+static int bssplit_ddir(struct thread_data *td, int ddir, char *str)
 {
-       struct thread_data *td = data;
-       char *fname, *str, *p;
+       struct bssplit *bssplit;
        unsigned int i, perc, perc_missing;
        unsigned int max_bs, min_bs;
        long long val;
+       char *fname;
 
-       p = str = strdup(input);
-
-       strip_blank_front(&str);
-       strip_blank_end(str);
-
-       td->o.bssplit_nr = 4;
-       td->o.bssplit = malloc(4 * sizeof(struct bssplit));
+       td->o.bssplit_nr[ddir] = 4;
+       bssplit = malloc(4 * sizeof(struct bssplit));
 
        i = 0;
        max_bs = 0;
@@ -64,9 +63,10 @@ static int str_bssplit_cb(void *data, const char *input)
                /*
                 * grow struct buffer, if needed
                 */
-               if (i == td->o.bssplit_nr) {
-                       td->o.bssplit_nr <<= 1;
-                       td->o.bssplit = realloc(td->o.bssplit, td->o.bssplit_nr * sizeof(struct bssplit));
+               if (i == td->o.bssplit_nr[ddir]) {
+                       td->o.bssplit_nr[ddir] <<= 1;
+                       bssplit = realloc(bssplit, td->o.bssplit_nr[ddir]
+                                                 * sizeof(struct bssplit));
                }
 
                perc_str = strstr(fname, "/");
@@ -92,19 +92,19 @@ static int str_bssplit_cb(void *data, const char *input)
                if (val < min_bs)
                        min_bs = val;
 
-               td->o.bssplit[i].bs = val;
-               td->o.bssplit[i].perc = perc;
+               bssplit[i].bs = val;
+               bssplit[i].perc = perc;
                i++;
        }
 
-       td->o.bssplit_nr = i;
+       td->o.bssplit_nr[ddir] = i;
 
        /*
         * Now check if the percentages add up, and how much is missing
         */
        perc = perc_missing = 0;
-       for (i = 0; i < td->o.bssplit_nr; i++) {
-               struct bssplit *bsp = &td->o.bssplit[i];
+       for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
+               struct bssplit *bsp = &bssplit[i];
 
                if (bsp->perc == (unsigned char) -1)
                        perc_missing++;
@@ -114,7 +114,7 @@ static int str_bssplit_cb(void *data, const char *input)
 
        if (perc > 100) {
                log_err("fio: bssplit percentages add to more than 100%%\n");
-               free(td->o.bssplit);
+               free(bssplit);
                return 1;
        }
        /*
@@ -122,24 +122,58 @@ static int str_bssplit_cb(void *data, const char *input)
         * them.
         */
        if (perc_missing) {
-               for (i = 0; i < td->o.bssplit_nr; i++) {
-                       struct bssplit *bsp = &td->o.bssplit[i];
+               for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
+                       struct bssplit *bsp = &bssplit[i];
 
                        if (bsp->perc == (unsigned char) -1)
                                bsp->perc = (100 - perc) / perc_missing;
                }
        }
 
-       td->o.min_bs[DDIR_READ] = td->o.min_bs[DDIR_WRITE] = min_bs;
-       td->o.max_bs[DDIR_READ] = td->o.max_bs[DDIR_WRITE] = max_bs;
+       td->o.min_bs[ddir] = min_bs;
+       td->o.max_bs[ddir] = max_bs;
 
        /*
         * now sort based on percentages, for ease of lookup
         */
-       qsort(td->o.bssplit, td->o.bssplit_nr, sizeof(struct bssplit), bs_cmp);
+       qsort(bssplit, td->o.bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
+       td->o.bssplit[ddir] = bssplit;
+       return 0;
+
+}
+
+static int str_bssplit_cb(void *data, const char *input)
+{
+       struct thread_data *td = data;
+       char *str, *p, *odir;
+       int ret = 0;
+
+       p = str = strdup(input);
+
+       strip_blank_front(&str);
+       strip_blank_end(str);
+
+       odir = strchr(str, ',');
+       if (odir) {
+               ret = bssplit_ddir(td, DDIR_WRITE, odir + 1);
+               if (!ret) {
+                       *odir = '\0';
+                       ret = bssplit_ddir(td, DDIR_READ, str);
+               }
+       } else {
+               char *op;
+
+               op = strdup(str);
+
+               ret = bssplit_ddir(td, DDIR_READ, str);
+               if (!ret)
+                       ret = bssplit_ddir(td, DDIR_WRITE, op);
+
+               free(op);
+       }
 
        free(p);
-       return 0;
+       return ret;
 }
 
 static int str_rw_cb(void *data, const char *str)
@@ -148,8 +182,10 @@ static int str_rw_cb(void *data, const char *str)
        char *nr = get_opt_postfix(str);
 
        td->o.ddir_nr = 1;
-       if (nr)
+       if (nr) {
                td->o.ddir_nr = atoi(nr);
+               free(nr);
+       }
 
        return 0;
 }
@@ -175,6 +211,24 @@ static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
        return 0;
 }
 
+static int str_rwmix_read_cb(void *data, unsigned int *val)
+{
+       struct thread_data *td = data;
+
+       td->o.rwmix[DDIR_READ] = *val;
+       td->o.rwmix[DDIR_WRITE] = 100 - *val;
+       return 0;
+}
+
+static int str_rwmix_write_cb(void *data, unsigned int *val)
+{
+       struct thread_data *td = data;
+
+       td->o.rwmix[DDIR_WRITE] = *val;
+       td->o.rwmix[DDIR_READ] = 100 - *val;
+       return 0;
+}
+
 #ifdef FIO_HAVE_IOPRIO
 static int str_prioclass_cb(void *data, unsigned int *val)
 {
@@ -220,12 +274,29 @@ static int str_cpumask_cb(void *data, unsigned int *val)
 {
        struct thread_data *td = data;
        unsigned int i;
+       long max_cpu;
+       int ret;
 
-       CPU_ZERO(&td->o.cpumask);
+       ret = fio_cpuset_init(&td->o.cpumask);
+       if (ret < 0) {
+               log_err("fio: cpuset_init failed\n");
+               td_verror(td, ret, "fio_cpuset_init");
+               return 1;
+       }
 
-       for (i = 0; i < sizeof(int) * 8; i++)
-               if ((1 << i) & *val)
-                       CPU_SET(*val, &td->o.cpumask);
+       max_cpu = sysconf(_SC_NPROCESSORS_ONLN);
+
+       for (i = 0; i < sizeof(int) * 8; i++) {
+               if ((1 << i) & *val) {
+                       if (i > max_cpu) {
+                               log_err("fio: CPU %d too large (max=%ld)\n", i,
+                                                               max_cpu);
+                               return 1;
+                       }
+                       dprint(FD_PARSE, "set cpu allowed %d\n", i);
+                       fio_cpu_set(&td->o.cpumask, i);
+               }
+       }
 
        td->o.cpumask_set = 1;
        return 0;
@@ -235,23 +306,68 @@ static int str_cpus_allowed_cb(void *data, const char *input)
 {
        struct thread_data *td = data;
        char *cpu, *str, *p;
+       long max_cpu;
+       int ret = 0;
 
-       CPU_ZERO(&td->o.cpumask);
+       ret = fio_cpuset_init(&td->o.cpumask);
+       if (ret < 0) {
+               log_err("fio: cpuset_init failed\n");
+               td_verror(td, ret, "fio_cpuset_init");
+               return 1;
+       }
 
        p = str = strdup(input);
 
        strip_blank_front(&str);
        strip_blank_end(str);
 
+       max_cpu = sysconf(_SC_NPROCESSORS_ONLN);
+
        while ((cpu = strsep(&str, ",")) != NULL) {
+               char *str2, *cpu2;
+               int icpu, icpu2;
+
                if (!strlen(cpu))
                        break;
-               CPU_SET(atoi(cpu), &td->o.cpumask);
+
+               str2 = cpu;
+               icpu2 = -1;
+               while ((cpu2 = strsep(&str2, "-")) != NULL) {
+                       if (!strlen(cpu2))
+                               break;
+
+                       icpu2 = atoi(cpu2);
+               }
+
+               icpu = atoi(cpu);
+               if (icpu2 == -1)
+                       icpu2 = icpu;
+               while (icpu <= icpu2) {
+                       if (icpu >= FIO_MAX_CPUS) {
+                               log_err("fio: your OS only supports up to"
+                                       " %d CPUs\n", (int) FIO_MAX_CPUS);
+                               ret = 1;
+                               break;
+                       }
+                       if (icpu > max_cpu) {
+                               log_err("fio: CPU %d too large (max=%ld)\n",
+                                                       icpu, max_cpu);
+                               ret = 1;
+                               break;
+                       }
+       
+                       dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
+                       fio_cpu_set(&td->o.cpumask, icpu);
+                       icpu++;
+               }
+               if (ret)
+                       break;
        }
 
        free(p);
-       td->o.cpumask_set = 1;
-       return 0;
+       if (!ret)
+               td->o.cpumask_set = 1;
+       return ret;
 }
 #endif
 
@@ -261,8 +377,49 @@ static int str_fst_cb(void *data, const char *str)
        char *nr = get_opt_postfix(str);
 
        td->file_service_nr = 1;
-       if (nr)
+       if (nr) {
                td->file_service_nr = atoi(nr);
+               free(nr);
+       }
+
+       return 0;
+}
+
+static int check_dir(struct thread_data *td, char *fname)
+{
+       char file[PATH_MAX], *dir;
+       int elen = 0;
+
+       if (td->o.directory) {
+               strcpy(file, td->o.directory);
+               strcat(file, "/");
+               elen = strlen(file);
+       }
+
+       sprintf(file + elen, "%s", fname);
+       dir = dirname(file);
+
+#if 0
+       {
+       struct stat sb;
+       /*
+        * We can't do this on FIO_DISKLESSIO engines. The engine isn't loaded
+        * yet, so we can't do this check right here...
+        */
+       if (lstat(dir, &sb) < 0) {
+               int ret = errno;
+
+               log_err("fio: %s is not a directory\n", dir);
+               td_verror(td, ret, "lstat");
+               return 1;
+       }
+
+       if (!S_ISDIR(sb.st_mode)) {
+               log_err("fio: %s is not a directory\n", dir);
+               return 1;
+       }
+       }
+#endif
 
        return 0;
 }
@@ -283,6 +440,10 @@ static int str_filename_cb(void *data, const char *input)
        while ((fname = strsep(&str, ":")) != NULL) {
                if (!strlen(fname))
                        break;
+               if (check_dir(td, fname)) {
+                       free(p);
+                       return 1;
+               }
                add_file(td, fname);
                td->o.nr_files++;
        }
@@ -297,8 +458,10 @@ static int str_directory_cb(void *data, const char fio_unused *str)
        struct stat sb;
 
        if (lstat(td->o.directory, &sb) < 0) {
+               int ret = errno;
+
                log_err("fio: %s is not a directory\n", td->o.directory);
-               td_verror(td, errno, "lstat");
+               td_verror(td, ret, "lstat");
                return 1;
        }
        if (!S_ISDIR(sb.st_mode)) {
@@ -337,7 +500,7 @@ static int str_verify_pattern_cb(void *data, unsigned int *off)
        struct thread_data *td = data;
        unsigned int msb;
 
-       msb = fls(*off);
+       msb = __fls(*off);
        if (msb <= 8)
                td->o.verify_pattern_bytes = 1;
        else if (msb <= 16)
@@ -357,12 +520,60 @@ static int str_lockfile_cb(void *data, const char *str)
        char *nr = get_opt_postfix(str);
 
        td->o.lockfile_batch = 1;
-       if (nr)
+       if (nr) {
                td->o.lockfile_batch = atoi(nr);
+               free(nr);
+       }
 
        return 0;
 }
 
+static int str_write_bw_log_cb(void *data, const char *str)
+{
+       struct thread_data *td = data;
+
+       if (str)
+               td->o.bw_log_file = strdup(str);
+
+       td->o.write_bw_log = 1;
+       return 0;
+}
+
+static int str_write_lat_log_cb(void *data, const char *str)
+{
+       struct thread_data *td = data;
+
+       if (str)
+               td->o.lat_log_file = strdup(str);
+
+       td->o.write_lat_log = 1;
+       return 0;
+}
+
+static int str_gtod_reduce_cb(void *data, int *il)
+{
+       struct thread_data *td = data;
+       int val = *il;
+
+       td->o.disable_clat = !!val;
+       td->o.disable_slat = !!val;
+       td->o.disable_bw = !!val;
+       if (val)
+               td->tv_cache_mask = 63;
+
+       return 0;
+}
+
+static int str_gtod_cpu_cb(void *data, int *il)
+{
+       struct thread_data *td = data;
+       int val = *il;
+
+       td->o.gtod_cpu = val;
+       td->o.gtod_offload = 1;
+       return 0;
+}
+
 #define __stringify_1(x)       #x
 #define __stringify(x)         __stringify_1(x)
 
@@ -394,6 +605,7 @@ static struct fio_option options[] = {
                .type   = FIO_OPT_STR_STORE,
                .off1   = td_var_offset(filename),
                .cb     = str_filename_cb,
+               .prio   = -1, /* must come after "directory" */
                .help   = "File(s) to use for the workload",
        },
        {
@@ -487,6 +699,11 @@ static struct fio_option options[] = {
                          { .ival = "posixaio",
                            .help = "POSIX asynchronous IO",
                          },
+#endif
+#ifdef FIO_HAVE_SOLARISAIO
+                         { .ival = "solarisaio",
+                           .help = "Solaris native asynchronous IO",
+                         },
 #endif
                          { .ival = "mmap",
                            .help = "Memory mapped IO",
@@ -538,13 +755,23 @@ static struct fio_option options[] = {
        },
        {
                .name   = "iodepth_batch",
+               .alias  = "iodepth_batch_submit",
                .type   = FIO_OPT_INT,
                .off1   = td_var_offset(iodepth_batch),
-               .help   = "Number of IO to submit in one go",
+               .help   = "Number of IO buffers to submit in one go",
                .parent = "iodepth",
                .minval = 1,
                .def    = "1",
        },
+       {
+               .name   = "iodepth_batch_complete",
+               .type   = FIO_OPT_INT,
+               .off1   = td_var_offset(iodepth_batch_complete),
+               .help   = "Number of IO buffers to retrieve in one go",
+               .parent = "iodepth",
+               .minval = 0,
+               .def    = "1",
+       },
        {
                .name   = "iodepth_low",
                .type   = FIO_OPT_INT,
@@ -593,6 +820,16 @@ static struct fio_option options[] = {
                .def    = "4k",
                .parent = "rw",
        },
+       {
+               .name   = "ba",
+               .alias  = "blockalign",
+               .type   = FIO_OPT_STR_VAL_INT,
+               .off1   = td_var_offset(ba[DDIR_READ]),
+               .off2   = td_var_offset(ba[DDIR_WRITE]),
+               .minval = 1,
+               .help   = "IO block offset alignment",
+               .parent = "rw",
+       },
        {
                .name   = "bsrange",
                .alias  = "blocksize_range",
@@ -635,6 +872,14 @@ static struct fio_option options[] = {
                .help   = "Accept potential duplicate random blocks",
                .parent = "rw",
        },
+       {
+               .name   = "softrandommap",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(softrandommap),
+               .help   = "Set norandommap if randommap allocation fails",
+               .parent = "norandommap",
+               .def    = "0",
+       },
        {
                .name   = "nrfiles",
                .type   = FIO_OPT_INT,
@@ -664,6 +909,10 @@ static struct fio_option options[] = {
                            .oval = FIO_FSERVICE_RR,
                            .help = "Round robin select files",
                          },
+                         { .ival = "sequential",
+                           .oval = FIO_FSERVICE_SEQ,
+                           .help = "Finish one file before moving to the next",
+                         },
                },
                .parent = "nrfiles",
        },
@@ -738,6 +987,12 @@ static struct fio_option options[] = {
                .off1   = td_var_offset(time_based),
                .help   = "Keep running until runtime/timeout is met",
        },
+       {
+               .name   = "ramp_time",
+               .type   = FIO_OPT_STR_VAL_TIME,
+               .off1   = td_var_offset(ramp_time),
+               .help   = "Ramp up time before measuring performance",
+       },
        {
                .name   = "mem",
                .alias  = "iomem",
@@ -796,6 +1051,14 @@ static struct fio_option options[] = {
                            .oval = VERIFY_CRC32,
                            .help = "Use crc32 checksums for verification",
                          },
+                         { .ival = "crc32c-intel",
+                           .oval = VERIFY_CRC32C_INTEL,
+                           .help = "Use hw crc32c checksums for verification",
+                         },
+                         { .ival = "crc32c",
+                           .oval = VERIFY_CRC32C,
+                           .help = "Use crc32c checksums for verification",
+                         },
                          { .ival = "crc16",
                            .oval = VERIFY_CRC16,
                            .help = "Use crc16 checksums for verification",
@@ -852,7 +1115,7 @@ static struct fio_option options[] = {
                .type   = FIO_OPT_STR_VAL_INT,
                .help   = "Offset verify header location by N bytes",
                .def    = "0",
-               .cb     = str_verify_offset_cb, 
+               .cb     = str_verify_offset_cb,
                .parent = "verify",
        },
        {
@@ -926,7 +1189,7 @@ static struct fio_option options[] = {
        {
                .name   = "rwmixread",
                .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(rwmix[DDIR_READ]),
+               .cb     = str_rwmix_read_cb,
                .maxval = 100,
                .help   = "Percentage of mixed workload that is reads",
                .def    = "50",
@@ -934,18 +1197,14 @@ static struct fio_option options[] = {
        {
                .name   = "rwmixwrite",
                .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(rwmix[DDIR_WRITE]),
+               .cb     = str_rwmix_write_cb,
                .maxval = 100,
                .help   = "Percentage of mixed workload that is writes",
                .def    = "50",
        },
        {
                .name   = "rwmixcycle",
-               .type   = FIO_OPT_INT,
-               .off1   = td_var_offset(rwmixcycle),
-               .help   = "Cycle period for mixed read/write workloads (msec)",
-               .def    = "500",
-               .parent = "rwmixread",
+               .type   = FIO_OPT_DEPRECATED,
        },
        {
                .name   = "nice",
@@ -1050,7 +1309,8 @@ static struct fio_option options[] = {
                .name   = "bwavgtime",
                .type   = FIO_OPT_INT,
                .off1   = td_var_offset(bw_avg_time),
-               .help   = "Time window over which to calculate bandwidth (msec)",
+               .help   = "Time window over which to calculate bandwidth"
+                         " (msec)",
                .def    = "500",
        },
        {
@@ -1067,6 +1327,20 @@ static struct fio_option options[] = {
                .help   = "Fsync file after creation",
                .def    = "1",
        },
+       {
+               .name   = "create_on_open",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(create_on_open),
+               .help   = "Create files when they are opened for IO",
+               .def    = "0",
+       },
+       {
+               .name   = "pre_read",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(pre_read),
+               .help   = "Preread files before starting official testing",
+               .def    = "0",
+       },
        {
                .name   = "cpuload",
                .type   = FIO_OPT_INT,
@@ -1142,14 +1416,16 @@ static struct fio_option options[] = {
        },
        {
                .name   = "write_bw_log",
-               .type   = FIO_OPT_STR_SET,
+               .type   = FIO_OPT_STR,
                .off1   = td_var_offset(write_bw_log),
+               .cb     = str_write_bw_log_cb,
                .help   = "Write log of bandwidth during run",
        },
        {
                .name   = "write_lat_log",
-               .type   = FIO_OPT_STR_SET,
+               .type   = FIO_OPT_STR,
                .off1   = td_var_offset(write_lat_log),
+               .cb     = str_write_lat_log_cb,
                .help   = "Write log of latency during run",
        },
        {
@@ -1171,15 +1447,58 @@ static struct fio_option options[] = {
                .off1   = td_var_offset(zero_buffers),
                .help   = "Init IO buffers to all zeroes",
        },
+       {
+               .name   = "refill_buffers",
+               .type   = FIO_OPT_STR_SET,
+               .off1   = td_var_offset(refill_buffers),
+               .help   = "Refill IO buffers on every IO submit",
+       },
 #ifdef FIO_HAVE_DISK_UTIL
        {
                .name   = "disk_util",
                .type   = FIO_OPT_BOOL,
                .off1   = td_var_offset(do_disk_util),
-               .help   = "Log disk utilization stats",
+               .help   = "Log disk utilization statistics",
                .def    = "1",
        },
 #endif
+       {
+               .name   = "gtod_reduce",
+               .type   = FIO_OPT_BOOL,
+               .help   = "Greatly reduce number of gettimeofday() calls",
+               .cb     = str_gtod_reduce_cb,
+               .def    = "0",
+       },
+       {
+               .name   = "disable_clat",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(disable_clat),
+               .help   = "Disable completion latency numbers",
+               .parent = "gtod_reduce",
+               .def    = "0",
+       },
+       {
+               .name   = "disable_slat",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(disable_slat),
+               .help   = "Disable submissionn latency numbers",
+               .parent = "gtod_reduce",
+               .def    = "0",
+       },
+       {
+               .name   = "disable_bw_measurement",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(disable_bw),
+               .help   = "Disable bandwidth logging",
+               .parent = "gtod_reduce",
+               .def    = "0",
+       },
+       {
+               .name   = "gtod_cpu",
+               .type   = FIO_OPT_INT,
+               .cb     = str_gtod_cpu_cb,
+               .help   = "Setup dedicated gettimeofday() thread on this CPU",
+       },
        {
                .name = NULL,
        },
@@ -1198,7 +1517,7 @@ void fio_options_dup_and_init(struct option *long_options)
 
        o = &options[0];
        while (o->name) {
-               long_options[i].name = o->name;
+               long_options[i].name = (char *) o->name;
                long_options[i].val = FIO_GETOPT_JOB;
                if (o->type == FIO_OPT_STR_SET)
                        long_options[i].has_arg = no_argument;
@@ -1211,9 +1530,16 @@ void fio_options_dup_and_init(struct option *long_options)
        }
 }
 
-int fio_option_parse(struct thread_data *td, const char *opt)
+int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
 {
-       return parse_option(opt, options, td);
+       int i, ret;
+
+       sort_options(opts, options, num_opts);
+
+       for (ret = 0, i = 0; i < num_opts; i++)
+               ret |= parse_option(opts[i], options, td);
+
+       return ret;
 }
 
 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)