[PATCH] Support for splice IO engine
[fio.git] / fio-ini.c
index 0c83f70246d4b23f59af47b54a862920db2edc7f..109bc14950fca9d798defbd55a28cc939f907feb 100644 (file)
--- a/fio-ini.c
+++ b/fio-ini.c
@@ -81,11 +81,11 @@ static void setup_log(struct io_log **log)
 
 void finish_log(struct thread_data *td, struct io_log *log, const char *name)
 {
-       char file_name[128];
+       char file_name[256];
        FILE *f;
        unsigned int i;
 
-       sprintf(file_name, "client%d_%s.log", td->thread_number, name);
+       snprintf(file_name, 200, "client%d_%s.log", td->thread_number, name);
        f = fopen(file_name, "w");
        if (!f) {
                perror("fopen log");
@@ -161,10 +161,10 @@ static void put_job(struct thread_data *td)
        thread_number--;
 }
 
-static int add_job(struct thread_data *td, const char *jobname, int prioclass,
-                  int prio)
+static int add_job(struct thread_data *td, const char *jobname)
 {
-       char *ddir_str[] = { "read", "write", "randread", "randwrite" };
+       char *ddir_str[] = { "read", "write", "randread", "randwrite",
+                            "rw", NULL, "randrw" };
        struct stat sb;
        int numjobs, ddir;
 
@@ -180,9 +180,6 @@ static int add_job(struct thread_data *td, const char *jobname, int prioclass,
                return 1;
        }
 #endif
-#ifdef FIO_HAVE_IOPRIO
-       td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio;
-#endif
 
        /*
         * the def_thread is just for options, it's not a real job
@@ -217,7 +214,7 @@ static int add_job(struct thread_data *td, const char *jobname, int prioclass,
                else
                        sprintf(td->file_name, "%s.%d", jobname, td->jobnum);
        } else
-               strcpy(td->file_name, jobname);
+               strncpy(td->file_name, jobname, sizeof(td->file_name) - 1);
 
        sem_init(&td->mutex, 0, 0);
 
@@ -229,7 +226,7 @@ static int add_job(struct thread_data *td, const char *jobname, int prioclass,
                td->min_bs = td->bs;
        if (td->max_bs == -1U)
                td->max_bs = td->bs;
-       if (td_read(td))
+       if (td_read(td) && !td_rw(td))
                td->verify = 0;
 
        if (td->stonewall && td->thread_number > 1)
@@ -247,8 +244,8 @@ static int add_job(struct thread_data *td, const char *jobname, int prioclass,
        if (write_bw_log)
                setup_log(&td->bw_log);
 
-       ddir = td->ddir + (!td->sequential << 1);
-       printf("Client%d (g=%d): rw=%s, prio=%d/%d, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], prioclass, prio, td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
+       ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
+       printf("Client%d (g=%d): rw=%s, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
 
        /*
         * recurse add identical jobs, clear numjobs and stonewall options
@@ -265,7 +262,7 @@ static int add_job(struct thread_data *td, const char *jobname, int prioclass,
                td_new->stonewall = 0;
                td_new->jobnum = numjobs;
 
-               if (add_job(td_new, jobname, prioclass, prio))
+               if (add_job(td_new, jobname))
                        goto err;
        }
        return 0;
@@ -390,6 +387,14 @@ static void strip_blank_end(char *p)
        }
 }
 
+static void terminate_line(char *p)
+{
+       while (*p != '\n' && *p != '\0')
+               p++;
+
+       *p = '\0';
+}
+
 typedef int (str_cb_fn)(struct thread_data *, char *);
 
 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
@@ -540,6 +545,16 @@ static int str_rw_cb(struct thread_data *td, char *mem)
                td->ddir = DDIR_WRITE;
                td->sequential = 0;
                return 0;
+       } else if (!strncmp(mem, "rw", 2)) {
+               td->ddir = 0;
+               td->iomix = 1;
+               td->sequential = 1;
+               return 0;
+       } else if (!strncmp(mem, "randrw", 6)) {
+               td->ddir = 0;
+               td->iomix = 1;
+               td->sequential = 0;
+               return 0;
        }
 
        fprintf(stderr, "bad data direction: %s\n", mem);
@@ -603,12 +618,23 @@ static int str_ioengine_cb(struct thread_data *td, char *str)
                strcpy(td->io_engine_name, "sgio");
                td->io_engine = FIO_SGIO;
                return 0;
+       } else if (!strncmp(str, "splice", 6)) {
+               strcpy(td->io_engine_name, "splice");
+               td->io_engine = FIO_SPLICEIO;
+               return 0;
        }
 
        fprintf(stderr, "bad ioengine type: %s\n", str);
        return 1;
 }
 
+static int str_iolog_cb(struct thread_data *td, char *file)
+{
+       terminate_line(file);
+       strncpy(td->iolog_file, file, sizeof(td->iolog_file) - 1);
+
+       return 0;
+}
 
 int parse_jobs_ini(char *file)
 {
@@ -623,7 +649,7 @@ int parse_jobs_ini(char *file)
 
        f = fopen(file, "r");
        if (!f) {
-               perror("fopen");
+               perror("fopen job file");
                return 1;
        }
 
@@ -644,20 +670,19 @@ int parse_jobs_ini(char *file)
                if (!td)
                        return 1;
 
-               prioclass = 2;
-               prio = 4;
-
                fgetpos(f, &off);
                while ((p = fgets(string, 4096, f)) != NULL) {
                        if (is_empty_or_comment(p))
                                continue;
                        if (strstr(p, "["))
                                break;
+
                        if (!check_int(p, "prio", &prio)) {
 #ifndef FIO_HAVE_IOPRIO
                                fprintf(stderr, "io priorities not available\n");
                                return 1;
 #endif
+                               td->ioprio |= prio;
                                fgetpos(f, &off);
                                continue;
                        }
@@ -666,6 +691,7 @@ int parse_jobs_ini(char *file)
                                fprintf(stderr, "io priorities not available\n");
                                return 1;
 #endif
+                               td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
                                fgetpos(f, &off);
                                continue;
                        }
@@ -818,12 +844,18 @@ int parse_jobs_ini(char *file)
                                fgetpos(f, &off);
                                continue;
                        }
+                       if (!check_str(p, "iolog", str_iolog_cb, td)) {
+                               td->iolog = 1;
+                               fgetpos(f, &off);
+                               continue;
+                       }
 
                        printf("Client%d: bad option %s\n",td->thread_number,p);
+                       return 1;
                }
                fsetpos(f, &off);
 
-               if (add_job(td, name, prioclass, prio))
+               if (add_job(td, name))
                        return 1;
        }
 
@@ -846,6 +878,7 @@ static int fill_def_thread(void)
         * fill globals
         */
        def_thread.ddir = DDIR_READ;
+       def_thread.iomix = 0;
        def_thread.bs = DEF_BS;
        def_thread.min_bs = -1;
        def_thread.max_bs = -1;
@@ -875,11 +908,25 @@ static int fill_def_thread(void)
        return 0;
 }
 
+static void usage(char *name)
+{
+       printf("%s\n", fio_version_string);
+       printf("\t-s IO is sequential\n");
+       printf("\t-b Block size in KiB for each IO\n");
+       printf("\t-t Runtime in seconds\n");
+       printf("\t-R Exit all threads on failure to meet rate goal\n");
+       printf("\t-o Use O_DIRECT\n");
+       printf("\t-l Generate per-job latency logs\n");
+       printf("\t-w Generate per-job bandwidth logs\n");
+       printf("\t-f Job file (Required)\n");
+       printf("\t-v Print version info and exit\n");
+}
+
 static void parse_cmd_line(int argc, char *argv[])
 {
        int c;
 
-       while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwv")) != EOF) {
+       while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwvh")) != EOF) {
                switch (c) {
                        case 's':
                                def_thread.sequential = !!atoi(optarg);
@@ -913,11 +960,17 @@ static void parse_cmd_line(int argc, char *argv[])
                        case 'w':
                                write_bw_log = 1;
                                break;
+                       case 'h':
+                               usage(argv[0]);
+                               exit(0);
                        case 'v':
                                printf("%s\n", fio_version_string);
                                exit(0);
                }
        }
+
+       if (!ini_file && argc > 1 && argv[argc - 1][0] != '-')
+               ini_file = strdup(argv[argc - 1]);
 }
 
 static void free_shm(void)
@@ -975,11 +1028,14 @@ int parse_options(int argc, char *argv[])
 
        if (!ini_file) {
                printf("Need job file\n");
+               usage(argv[0]);
                return 1;
        }
 
-       if (parse_jobs_ini(ini_file))
+       if (parse_jobs_ini(ini_file)) {
+               usage(argv[0]);
                return 1;
+       }
 
        return 0;
 }