Merge branch 'dev' of https://github.com/smartxworks/fio
[fio.git] / iolog.c
diff --git a/iolog.c b/iolog.c
index 45a95aa..b72dcf9 100644 (file)
--- a/iolog.c
+++ b/iolog.c
@@ -4,7 +4,6 @@
  */
 #include <stdio.h>
 #include <stdlib.h>
-#include <libgen.h>
 #include <assert.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 
 #include "flist.h"
 #include "fio.h"
-#include "verify.h"
 #include "trim.h"
 #include "filelock.h"
 #include "smalloc.h"
 #include "blktrace.h"
+#include "pshared.h"
+
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/un.h>
 
 static int iolog_flush(struct io_log *log);
 
@@ -36,7 +42,7 @@ void log_io_u(const struct thread_data *td, const struct io_u *io_u)
        if (!td->o.write_iolog_file)
                return;
 
-       fprintf(td->iolog_f, "%s %s %llu %lu\n", io_u->file->file_name,
+       fprintf(td->iolog_f, "%s %s %llu %llu\n", io_u->file->file_name,
                                                io_ddir_name(io_u->ddir),
                                                io_u->offset, io_u->buflen);
 }
@@ -64,6 +70,7 @@ void log_file(struct thread_data *td, struct fio_file *f,
 static void iolog_delay(struct thread_data *td, unsigned long delay)
 {
        uint64_t usec = utime_since_now(&td->last_issue);
+       unsigned long orig_delay = delay;
        uint64_t this_delay;
        struct timespec ts;
 
@@ -89,8 +96,8 @@ static void iolog_delay(struct thread_data *td, unsigned long delay)
        }
 
        usec = utime_since_now(&ts);
-       if (usec > delay)
-               td->time_offset = usec - delay;
+       if (usec > orig_delay)
+               td->time_offset = usec - orig_delay;
        else
                td->time_offset = 0;
 }
@@ -134,6 +141,8 @@ static int ipo_special(struct thread_data *td, struct io_piece *ipo)
        return 1;
 }
 
+static bool read_iolog2(struct thread_data *td);
+
 int read_iolog_get(struct thread_data *td, struct io_u *io_u)
 {
        struct io_piece *ipo;
@@ -141,7 +150,13 @@ int read_iolog_get(struct thread_data *td, struct io_u *io_u)
 
        while (!flist_empty(&td->io_log_list)) {
                int ret;
-
+               if (td->o.read_iolog_chunked) {
+                       if (td->io_log_checkmark == td->io_log_current) {
+                               if (!read_iolog2(td))
+                                       return 1;
+                       }
+                       td->io_log_current--;
+               }
                ipo = flist_first_entry(&td->io_log_list, struct io_piece, list);
                flist_del(&ipo->list);
                remove_trim_entry(td, ipo);
@@ -161,7 +176,7 @@ int read_iolog_get(struct thread_data *td, struct io_u *io_u)
                        io_u->buflen = ipo->len;
                        io_u->file = td->files[ipo->fileno];
                        get_file(io_u->file);
-                       dprint(FD_IO, "iolog: get %llu/%lu/%s\n", io_u->offset,
+                       dprint(FD_IO, "iolog: get %llu/%llu/%s\n", io_u->offset,
                                                io_u->buflen, io_u->file->file_name);
                        if (ipo->delay)
                                iolog_delay(td, ipo->delay);
@@ -184,7 +199,7 @@ int read_iolog_get(struct thread_data *td, struct io_u *io_u)
 void prune_io_piece_log(struct thread_data *td)
 {
        struct io_piece *ipo;
-       struct rb_node *n;
+       struct fio_rb_node *n;
 
        while ((n = rb_first(&td->io_hist_tree)) != NULL) {
                ipo = rb_entry(n, struct io_piece, rb_node);
@@ -208,10 +223,10 @@ void prune_io_piece_log(struct thread_data *td)
  */
 void log_io_piece(struct thread_data *td, struct io_u *io_u)
 {
-       struct rb_node **p, *parent;
+       struct fio_rb_node **p, *parent;
        struct io_piece *ipo, *__ipo;
 
-       ipo = malloc(sizeof(struct io_piece));
+       ipo = calloc(1, sizeof(struct io_piece));
        init_ipo(ipo);
        ipo->file = io_u->file;
        ipo->offset = io_u->offset;
@@ -227,21 +242,11 @@ void log_io_piece(struct thread_data *td, struct io_u *io_u)
        }
 
        /*
-        * We don't need to sort the entries, if:
-        *
-        *      Sequential writes, or
-        *      Random writes that lay out the file as it goes along
-        *
-        * For both these cases, just reading back data in the order we
-        * wrote it out is the fastest.
-        *
-        * One exception is if we don't have a random map AND we are doing
-        * verifies, in that case we need to check for duplicate blocks and
-        * drop the old one, which we rely on the rb insert/lookup for
-        * handling.
+        * Only sort writes if we don't have a random map in which case we need
+        * to check for duplicate blocks and drop the old one, which we rely on
+        * the rb insert/lookup for handling.
         */
-       if (((!td->o.verifysort) || !td_random(td) || !td->o.overwrite) &&
-             (file_randommap(td, ipo->file) || td->o.verify == VERIFY_NONE)) {
+       if (file_randommap(td, ipo->file)) {
                INIT_FLIST_HEAD(&ipo->list);
                flist_add_tail(&ipo->list, &td->io_hist_list);
                ipo->flags |= IP_F_ONLIST;
@@ -284,7 +289,8 @@ restart:
                        td->io_hist_len--;
                        rb_erase(parent, &td->io_hist_tree);
                        remove_trim_entry(td, __ipo);
-                       free(__ipo);
+                       if (!(__ipo->flags & IP_F_IN_FLIGHT))
+                               free(__ipo);
                        goto restart;
                }
        }
@@ -324,7 +330,7 @@ void unlog_io_piece(struct thread_data *td, struct io_u *io_u)
        td->io_hist_len--;
 }
 
-void trim_io_piece(struct thread_data *td, const struct io_u *io_u)
+void trim_io_piece(const struct io_u *io_u)
 {
        struct io_piece *ipo = io_u->ipo;
 
@@ -343,11 +349,39 @@ void write_iolog_close(struct thread_data *td)
        td->iolog_buf = NULL;
 }
 
+static int64_t iolog_items_to_fetch(struct thread_data *td)
+{
+       struct timespec now;
+       uint64_t elapsed;
+       uint64_t for_1s;
+       int64_t items_to_fetch;
+
+       if (!td->io_log_highmark)
+               return 10;
+
+
+       fio_gettime(&now, NULL);
+       elapsed = ntime_since(&td->io_log_highmark_time, &now);
+       if (elapsed) {
+               for_1s = (td->io_log_highmark - td->io_log_current) * 1000000000 / elapsed;
+               items_to_fetch = for_1s - td->io_log_current;
+               if (items_to_fetch < 0)
+                       items_to_fetch = 0;
+       } else
+               items_to_fetch = 0;
+
+       td->io_log_highmark = td->io_log_current + items_to_fetch;
+       td->io_log_checkmark = (td->io_log_highmark + 1) / 2;
+       fio_gettime(&td->io_log_highmark_time, NULL);
+
+       return items_to_fetch;
+}
+
 /*
  * Read version 2 iolog data. It is enhanced to include per-file logging,
  * syncs, etc.
  */
-static int read_iolog2(struct thread_data *td, FILE *f)
+static bool read_iolog2(struct thread_data *td)
 {
        unsigned long long offset;
        unsigned int bytes;
@@ -355,8 +389,14 @@ static int read_iolog2(struct thread_data *td, FILE *f)
        char *rfname, *fname, *act;
        char *str, *p;
        enum fio_ddir rw;
+       bool realloc = false;
+       int64_t items_to_fetch = 0;
 
-       free_release_files(td);
+       if (td->o.read_iolog_chunked) {
+               items_to_fetch = iolog_items_to_fetch(td);
+               if (!items_to_fetch)
+                       return true;
+       }
 
        /*
         * Read in the read iolog and store it, reuse the infrastructure
@@ -367,7 +407,7 @@ static int read_iolog2(struct thread_data *td, FILE *f)
        act = malloc(256+16);
 
        reads = writes = waits = 0;
-       while ((p = fgets(str, 4096, f)) != NULL) {
+       while ((p = fgets(str, 4096, td->io_log_rfile)) != NULL) {
                struct io_piece *ipo;
                int r;
 
@@ -407,7 +447,7 @@ static int read_iolog2(struct thread_data *td, FILE *f)
                                        dprint(FD_FILE, "iolog: ignoring"
                                                " re-add of file %s\n", fname);
                                } else {
-                                       fileno = add_file(td, fname, 0, 1);
+                                       fileno = add_file(td, fname, td->subjob_number, 1);
                                        file_action = FIO_LOG_ADD_FILE;
                                }
                                continue;
@@ -449,7 +489,7 @@ static int read_iolog2(struct thread_data *td, FILE *f)
                /*
                 * Make note of file
                 */
-               ipo = malloc(sizeof(*ipo));
+               ipo = calloc(1, sizeof(*ipo));
                init_ipo(ipo);
                ipo->ddir = rw;
                if (rw == DDIR_WAIT) {
@@ -462,28 +502,57 @@ static int read_iolog2(struct thread_data *td, FILE *f)
                        ipo_bytes_align(td->o.replay_align, ipo);
 
                        ipo->len = bytes;
-                       if (rw != DDIR_INVAL && bytes > td->o.max_bs[rw])
+                       if (rw != DDIR_INVAL && bytes > td->o.max_bs[rw]) {
+                               realloc = true;
                                td->o.max_bs[rw] = bytes;
+                       }
                        ipo->fileno = fileno;
                        ipo->file_action = file_action;
                        td->o.size += bytes;
                }
 
                queue_io_piece(td, ipo);
+
+               if (td->o.read_iolog_chunked) {
+                       td->io_log_current++;
+                       items_to_fetch--;
+                       if (items_to_fetch == 0)
+                               break;
+               }
        }
 
        free(str);
        free(act);
        free(rfname);
 
+       if (td->o.read_iolog_chunked) {
+               td->io_log_highmark = td->io_log_current;
+               td->io_log_checkmark = (td->io_log_highmark + 1) / 2;
+               fio_gettime(&td->io_log_highmark_time, NULL);
+       }
+
        if (writes && read_only) {
                log_err("fio: <%s> skips replay of %d writes due to"
                        " read-only\n", td->o.name, writes);
                writes = 0;
        }
 
+       if (td->o.read_iolog_chunked) {
+               if (td->io_log_current == 0) {
+                       return false;
+               }
+               td->o.td_ddir = TD_DDIR_RW;
+               if (realloc && td->orig_buffer)
+               {
+                       io_u_quiesce(td);
+                       free_io_mem(td);
+                       init_io_u_buffers(td);
+               }
+               return true;
+       }
+
        if (!reads && !writes && !waits)
-               return 1;
+               return false;
        else if (reads && !writes)
                td->o.td_ddir = TD_DDIR_READ;
        else if (!reads && writes)
@@ -491,22 +560,70 @@ static int read_iolog2(struct thread_data *td, FILE *f)
        else
                td->o.td_ddir = TD_DDIR_RW;
 
-       return 0;
+       return true;
+}
+
+static bool is_socket(const char *path)
+{
+       struct stat buf;
+       int r;
+
+       r = stat(path, &buf);
+       if (r == -1)
+               return false;
+
+       return S_ISSOCK(buf.st_mode);
+}
+
+static int open_socket(const char *path)
+{
+       struct sockaddr_un addr;
+       int ret, fd;
+
+       fd = socket(AF_UNIX, SOCK_STREAM, 0);
+       if (fd < 0)
+               return fd;
+
+       addr.sun_family = AF_UNIX;
+       if (snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", path) >=
+           sizeof(addr.sun_path)) {
+               log_err("%s: path name %s is too long for a Unix socket\n",
+                       __func__, path);
+       }
+
+       ret = connect(fd, (const struct sockaddr *)&addr, strlen(path) + sizeof(addr.sun_family));
+       if (!ret)
+               return fd;
+
+       close(fd);
+       return -1;
 }
 
 /*
  * open iolog, check version, and call appropriate parser
  */
-static int init_iolog_read(struct thread_data *td)
+static bool init_iolog_read(struct thread_data *td)
 {
-       char buffer[256], *p;
-       FILE *f;
-       int ret;
+       char buffer[256], *p, *fname;
+       FILE *f = NULL;
+
+       fname = get_name_by_idx(td->o.read_iolog_file, td->subjob_number);
+       dprint(FD_IO, "iolog: name=%s\n", fname);
+
+       if (is_socket(fname)) {
+               int fd;
+
+               fd = open_socket(fname);
+               if (fd >= 0)
+                       f = fdopen(fd, "r");
+       } else
+               f = fopen(fname, "r");
+
+       free(fname);
 
-       f = fopen(td->o.read_iolog_file, "r");
        if (!f) {
                perror("fopen read iolog");
-               return 1;
+               return false;
        }
 
        p = fgets(buffer, sizeof(buffer), f);
@@ -514,28 +631,28 @@ static int init_iolog_read(struct thread_data *td)
                td_verror(td, errno, "iolog read");
                log_err("fio: unable to read iolog\n");
                fclose(f);
-               return 1;
+               return false;
        }
 
        /*
         * version 2 of the iolog stores a specific string as the
         * first line, check for that
         */
-       if (!strncmp(iolog_ver2, buffer, strlen(iolog_ver2)))
-               ret = read_iolog2(td, f);
-       else {
-               log_err("fio: iolog version 1 is no longer supported\n");
-               ret = 1;
+       if (!strncmp(iolog_ver2, buffer, strlen(iolog_ver2))) {
+               free_release_files(td);
+               td->io_log_rfile = f;
+               return read_iolog2(td);
        }
 
+       log_err("fio: iolog version 1 is no longer supported\n");
        fclose(f);
-       return ret;
+       return false;
 }
 
 /*
  * Set up a log for storing io patterns.
  */
-static int init_iolog_write(struct thread_data *td)
+static bool init_iolog_write(struct thread_data *td)
 {
        struct fio_file *ff;
        FILE *f;
@@ -544,7 +661,7 @@ static int init_iolog_write(struct thread_data *td)
        f = fopen(td->o.write_iolog_file, "a");
        if (!f) {
                perror("fopen write iolog");
-               return 1;
+               return false;
        }
 
        /*
@@ -559,7 +676,7 @@ static int init_iolog_write(struct thread_data *td)
         */
        if (fprintf(f, "%s\n", iolog_ver2) < 0) {
                perror("iolog init\n");
-               return 1;
+               return false;
        }
 
        /*
@@ -568,12 +685,12 @@ static int init_iolog_write(struct thread_data *td)
        for_each_file(td, ff, i)
                log_file(td, ff, FIO_LOG_ADD_FILE);
 
-       return 0;
+       return true;
 }
 
-int init_iolog(struct thread_data *td)
+bool init_iolog(struct thread_data *td)
 {
-       int ret = 0;
+       bool ret;
 
        if (td->o.read_iolog_file) {
                int need_swap;
@@ -588,8 +705,10 @@ int init_iolog(struct thread_data *td)
                        ret = init_iolog_read(td);
        } else if (td->o.write_iolog_file)
                ret = init_iolog_write(td);
+       else
+               ret = true;
 
-       if (ret)
+       if (!ret)
                td_verror(td, EINVAL, "failed initializing iolog");
 
        return ret;
@@ -626,12 +745,12 @@ void setup_log(struct io_log **log, struct log_params *p,
        }
 
        if (l->td && l->td->o.io_submit_mode != IO_MODE_OFFLOAD) {
-               struct io_logs *p;
+               struct io_logs *__p;
 
-               p = calloc(1, sizeof(*l->pending));
-               p->max_samples = DEF_LOG_ENTRIES;
-               p->log = calloc(p->max_samples, log_entry_sz(l));
-               l->pending = p;
+               __p = calloc(1, sizeof(*l->pending));
+               __p->max_samples = DEF_LOG_ENTRIES;
+               __p->log = calloc(__p->max_samples, log_entry_sz(l));
+               l->pending = __p;
        }
 
        if (l->log_offset)
@@ -643,6 +762,7 @@ void setup_log(struct io_log **log, struct log_params *p,
                l->log_gz = 0;
        else if (l->log_gz || l->log_gz_store) {
                mutex_init_pshared(&l->chunk_lock);
+               mutex_init_pshared(&l->deferred_free_lock);
                p->td->flags |= TD_F_COMPRESS_LOG;
        }
 
@@ -697,10 +817,10 @@ void free_log(struct io_log *log)
        sfree(log);
 }
 
-unsigned long hist_sum(int j, int stride, unsigned int *io_u_plat,
-               unsigned int *io_u_plat_last)
+uint64_t hist_sum(int j, int stride, uint64_t *io_u_plat,
+               uint64_t *io_u_plat_last)
 {
-       unsigned long sum;
+       uint64_t sum;
        int k;
 
        if (io_u_plat_last) {
@@ -721,8 +841,8 @@ static void flush_hist_samples(FILE *f, int hist_coarseness, void *samples,
        int log_offset;
        uint64_t i, j, nr_samples;
        struct io_u_plat_entry *entry, *entry_before;
-       unsigned int *io_u_plat;
-       unsigned int *io_u_plat_before;
+       uint64_t *io_u_plat;
+       uint64_t *io_u_plat_before;
 
        int stride = 1 << hist_coarseness;
        
@@ -743,13 +863,13 @@ static void flush_hist_samples(FILE *f, int hist_coarseness, void *samples,
                entry_before = flist_first_entry(&entry->list, struct io_u_plat_entry, list);
                io_u_plat_before = entry_before->io_u_plat;
 
-               fprintf(f, "%lu, %u, %u, ", (unsigned long) s->time,
-                                               io_sample_ddir(s), s->bs);
+               fprintf(f, "%lu, %u, %llu, ", (unsigned long) s->time,
+                                               io_sample_ddir(s), (unsigned long long) s->bs);
                for (j = 0; j < FIO_IO_U_PLAT_NR - stride; j += stride) {
-                       fprintf(f, "%lu, ", hist_sum(j, stride, io_u_plat,
-                                               io_u_plat_before));
+                       fprintf(f, "%llu, ", (unsigned long long)
+                               hist_sum(j, stride, io_u_plat, io_u_plat_before));
                }
-               fprintf(f, "%lu\n", (unsigned long)
+               fprintf(f, "%llu\n", (unsigned long long)
                        hist_sum(FIO_IO_U_PLAT_NR - stride, stride, io_u_plat,
                                        io_u_plat_before));
 
@@ -776,17 +896,17 @@ void flush_samples(FILE *f, void *samples, uint64_t sample_size)
                s = __get_sample(samples, log_offset, i);
 
                if (!log_offset) {
-                       fprintf(f, "%lu, %" PRId64 ", %u, %u\n",
+                       fprintf(f, "%lu, %" PRId64 ", %u, %llu\n",
                                        (unsigned long) s->time,
                                        s->data.val,
-                                       io_sample_ddir(s), s->bs);
+                                       io_sample_ddir(s), (unsigned long long) s->bs);
                } else {
                        struct io_sample_offset *so = (void *) s;
 
-                       fprintf(f, "%lu, %" PRId64 ", %u, %u, %llu\n",
+                       fprintf(f, "%lu, %" PRId64 ", %u, %llu, %llu\n",
                                        (unsigned long) s->time,
                                        s->data.val,
-                                       io_sample_ddir(s), s->bs,
+                                       io_sample_ddir(s), (unsigned long long) s->bs,
                                        (unsigned long long) so->offset);
                }
        }
@@ -982,7 +1102,7 @@ int iolog_file_inflate(const char *file)
        struct iolog_compress ic;
        z_stream stream;
        struct stat sb;
-       ssize_t ret;
+       size_t ret;
        size_t total;
        void *buf;
        FILE *f;
@@ -1004,12 +1124,12 @@ int iolog_file_inflate(const char *file)
        ic.seq = 1;
 
        ret = fread(ic.buf, ic.len, 1, f);
-       if (ret < 0) {
+       if (ret == 0 && ferror(f)) {
                perror("fread");
                fclose(f);
                free(buf);
                return 1;
-       } else if (ret != 1) {
+       } else if (ferror(f) || (!feof(f) && ret != 1)) {
                log_err("fio: short read on reading log\n");
                fclose(f);
                free(buf);
@@ -1144,6 +1264,38 @@ size_t log_chunk_sizes(struct io_log *log)
 
 #ifdef CONFIG_ZLIB
 
+static void iolog_put_deferred(struct io_log *log, void *ptr)
+{
+       if (!ptr)
+               return;
+
+       pthread_mutex_lock(&log->deferred_free_lock);
+       if (log->deferred < IOLOG_MAX_DEFER) {
+               log->deferred_items[log->deferred] = ptr;
+               log->deferred++;
+       } else if (!fio_did_warn(FIO_WARN_IOLOG_DROP))
+               log_err("fio: had to drop log entry free\n");
+       pthread_mutex_unlock(&log->deferred_free_lock);
+}
+
+static void iolog_free_deferred(struct io_log *log)
+{
+       int i;
+
+       if (!log->deferred)
+               return;
+
+       pthread_mutex_lock(&log->deferred_free_lock);
+
+       for (i = 0; i < log->deferred; i++) {
+               free(log->deferred_items[i]);
+               log->deferred_items[i] = NULL;
+       }
+
+       log->deferred = 0;
+       pthread_mutex_unlock(&log->deferred_free_lock);
+}
+
 static int gz_work(struct iolog_flush_data *data)
 {
        struct iolog_compress *c = NULL;
@@ -1236,7 +1388,7 @@ static int gz_work(struct iolog_flush_data *data)
        if (ret != Z_OK)
                log_err("fio: deflateEnd %d\n", ret);
 
-       free(data->samples);
+       iolog_put_deferred(data->log, data->samples);
 
        if (!flist_empty(&list)) {
                pthread_mutex_lock(&data->log->chunk_lock);
@@ -1247,7 +1399,7 @@ static int gz_work(struct iolog_flush_data *data)
        ret = 0;
 done:
        if (data->free)
-               free(data);
+               sfree(data);
        return ret;
 err:
        while (!flist_empty(&list)) {
@@ -1348,7 +1500,7 @@ int iolog_cur_flush(struct io_log *log, struct io_logs *cur_log)
 {
        struct iolog_flush_data *data;
 
-       data = malloc(sizeof(*data));
+       data = smalloc(sizeof(*data));
        if (!data)
                return 1;
 
@@ -1362,6 +1514,9 @@ int iolog_cur_flush(struct io_log *log, struct io_logs *cur_log)
        cur_log->log = NULL;
 
        workqueue_enqueue(&log->td->log_compress_wq, &data->work);
+
+       iolog_free_deferred(log);
+
        return 0;
 }
 #else