iolog: silence warning on pointer cast on 32-bit compiles
[fio.git] / iolog.c
diff --git a/iolog.c b/iolog.c
index 0b775de13a21013995158cab0696340cff2db3c2..975ce6f7a481c438025992f4b828b6d69378b290 100644 (file)
--- a/iolog.c
+++ b/iolog.c
@@ -584,9 +584,20 @@ void setup_log(struct io_log **log, struct log_params *p,
        l->log_gz = p->log_gz;
        l->log_gz_store = p->log_gz_store;
        l->avg_msec = p->avg_msec;
+       l->hist_msec = p->hist_msec;
+       l->hist_coarseness = p->hist_coarseness;
        l->filename = strdup(filename);
        l->td = p->td;
 
+       if (l->td && l->td->o.io_submit_mode != IO_MODE_OFFLOAD) {
+               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;
+       }
+
        if (l->log_offset)
                l->log_ddir_mask = LOG_OFFSET_SAMPLE_BIT;
 
@@ -595,7 +606,7 @@ void setup_log(struct io_log **log, struct log_params *p,
        if (l->log_gz && !p->td)
                l->log_gz = 0;
        else if (l->log_gz || l->log_gz_store) {
-               pthread_mutex_init(&l->chunk_lock, NULL);
+               mutex_init_pshared(&l->chunk_lock);
                p->td->flags |= TD_F_COMPRESS_LOG;
        }
 
@@ -636,12 +647,63 @@ void free_log(struct io_log *log)
                cur_log = flist_first_entry(&log->io_logs, struct io_logs, list);
                flist_del_init(&cur_log->list);
                free(cur_log->log);
+               sfree(cur_log);
        }
 
+       if (log->pending) {
+               free(log->pending->log);
+               free(log->pending);
+               log->pending = NULL;
+       }
+
+       free(log->pending);
        free(log->filename);
        sfree(log);
 }
 
+static inline unsigned long hist_sum(int j, int stride, unsigned int *io_u_plat)
+{
+       unsigned long sum;
+       int k;
+
+       for (k = sum = 0; k < stride; k++)
+               sum += io_u_plat[j + k];
+
+       return sum;
+}
+
+void flush_hist_samples(FILE *f, int hist_coarseness, void *samples,
+                       uint64_t sample_size)
+{
+       struct io_sample *s;
+       int log_offset;
+       uint64_t i, j, nr_samples;
+       unsigned int *io_u_plat;
+
+       int stride = 1 << hist_coarseness;
+       
+       if (!sample_size)
+               return;
+
+       s = __get_sample(samples, 0, 0);
+       log_offset = (s->__ddir & LOG_OFFSET_SAMPLE_BIT) != 0;
+
+       nr_samples = sample_size / __log_entry_sz(log_offset);
+
+       for (i = 0; i < nr_samples; i++) {
+               s = __get_sample(samples, log_offset, i);
+               io_u_plat = (unsigned int *) (uintptr_t) s->val;
+               fprintf(f, "%lu, %u, %u, ", (unsigned long)s->time,
+                       io_sample_ddir(s), s->bs);
+               for (j = 0; j < FIO_IO_U_PLAT_NR - stride; j += stride) {
+                       fprintf(f, "%lu, ", hist_sum(j, stride, io_u_plat));
+               }
+               fprintf(f, "%lu\n", (unsigned long) 
+                       hist_sum(FIO_IO_U_PLAT_NR - stride, stride, io_u_plat));
+               free(io_u_plat);
+       }
+}
+
 void flush_samples(FILE *f, void *samples, uint64_t sample_size)
 {
        struct io_sample *s;
@@ -710,6 +772,7 @@ static int z_stream_init(z_stream *stream, int gz_hdr)
 {
        int wbits = 15;
 
+       memset(stream, 0, sizeof(*stream));
        stream->zalloc = Z_NULL;
        stream->zfree = Z_NULL;
        stream->opaque = Z_NULL;
@@ -744,7 +807,8 @@ static void finish_chunk(z_stream *stream, FILE *f,
 
        ret = inflateEnd(stream);
        if (ret != Z_OK)
-               log_err("fio: failed to end log inflation (%d)\n", ret);
+               log_err("fio: failed to end log inflation seq %d (%d)\n",
+                               iter->seq, ret);
 
        flush_samples(f, iter->buf, iter->buf_used);
        free(iter->buf);
@@ -761,7 +825,7 @@ static size_t inflate_chunk(struct iolog_compress *ic, int gz_hdr, FILE *f,
 {
        size_t ret;
 
-       dprint(FD_COMPRESS, "inflate chunk size=%lu, seq=%u",
+       dprint(FD_COMPRESS, "inflate chunk size=%lu, seq=%u\n",
                                (unsigned long) ic->len, ic->seq);
 
        if (ic->seq != iter->seq) {
@@ -808,7 +872,7 @@ static size_t inflate_chunk(struct iolog_compress *ic, int gz_hdr, FILE *f,
 
        ret = (void *) stream->next_in - ic->buf;
 
-       dprint(FD_COMPRESS, "inflated to size=%lu\n", (unsigned long) ret);
+       dprint(FD_COMPRESS, "inflated to size=%lu\n", (unsigned long) iter->buf_size);
 
        return ret;
 }
@@ -946,7 +1010,7 @@ int iolog_file_inflate(const char *file)
 
 #endif
 
-void flush_log(struct io_log *log, int do_append)
+void flush_log(struct io_log *log, bool do_append)
 {
        void *buf;
        FILE *f;
@@ -969,7 +1033,14 @@ void flush_log(struct io_log *log, int do_append)
 
                cur_log = flist_first_entry(&log->io_logs, struct io_logs, list);
                flist_del_init(&cur_log->list);
-               flush_samples(f, cur_log->log, cur_log->nr_samples * log_entry_sz(log));
+               
+               if (log == log->td->clat_hist_log)
+                       flush_hist_samples(f, log->hist_coarseness, cur_log->log,
+                                          cur_log->nr_samples * log_entry_sz(log));
+               else
+                       flush_samples(f, cur_log->log, cur_log->nr_samples * log_entry_sz(log));
+               
+               sfree(cur_log);
        }
 
        fclose(f);
@@ -1021,7 +1092,7 @@ size_t log_chunk_sizes(struct io_log *log)
 
 static int gz_work(struct iolog_flush_data *data)
 {
-       struct iolog_compress *c;
+       struct iolog_compress *c = NULL;
        struct flist_head list;
        unsigned int seq;
        z_stream stream;
@@ -1046,9 +1117,12 @@ static int gz_work(struct iolog_flush_data *data)
        stream.next_in = (void *) data->samples;
        stream.avail_in = data->nr_samples * log_entry_sz(data->log);
 
-       dprint(FD_COMPRESS, "deflate input size=%lu, seq=%u\n",
-                               (unsigned long) stream.avail_in, seq);
+       dprint(FD_COMPRESS, "deflate input size=%lu, seq=%u, log=%s\n",
+                               (unsigned long) stream.avail_in, seq,
+                               data->log->filename);
        do {
+               if (c)
+                       dprint(FD_COMPRESS, "seq=%d, chunk=%lu\n", seq, c->len);
                c = get_new_chunk(seq);
                stream.avail_out = GZ_CHUNK;
                stream.next_out = c->buf;
@@ -1068,9 +1142,26 @@ static int gz_work(struct iolog_flush_data *data)
        stream.avail_out = GZ_CHUNK - c->len;
 
        ret = deflate(&stream, Z_FINISH);
-       if (ret == Z_STREAM_END)
-               c->len = GZ_CHUNK - stream.avail_out;
-       else {
+       if (ret < 0) {
+               /*
+                * Z_BUF_ERROR is special, it just means we need more
+                * output space. We'll handle that below. Treat any other
+                * error as fatal.
+                */
+               if (ret != Z_BUF_ERROR) {
+                       log_err("fio: deflate log (%d)\n", ret);
+                       flist_del(&c->list);
+                       free_chunk(c);
+                       goto err;
+               }
+       }
+
+       total -= c->len;
+       c->len = GZ_CHUNK - stream.avail_out;
+       total += c->len;
+       dprint(FD_COMPRESS, "seq=%d, chunk=%lu\n", seq, c->len);
+
+       if (ret != Z_STREAM_END) {
                do {
                        c = get_new_chunk(seq);
                        stream.avail_out = GZ_CHUNK;
@@ -1079,6 +1170,7 @@ static int gz_work(struct iolog_flush_data *data)
                        c->len = GZ_CHUNK - stream.avail_out;
                        total += c->len;
                        flist_add_tail(&c->list, &list);
+                       dprint(FD_COMPRESS, "seq=%d, chunk=%lu\n", seq, c->len);
                } while (ret != Z_STREAM_END);
        }
 
@@ -1187,9 +1279,7 @@ static int iolog_flush(struct io_log *log)
                data->samples = cur_log->log;
                data->nr_samples = cur_log->nr_samples;
 
-               cur_log->nr_samples = 0;
-               cur_log->max_samples = 0;
-               cur_log->log = NULL;
+               sfree(cur_log);
 
                gz_work(data);
        }
@@ -1314,6 +1404,20 @@ static int write_clat_log(struct thread_data *td, int try, bool unit_log)
        return ret;
 }
 
+static int write_clat_hist_log(struct thread_data *td, int try, bool unit_log)
+{
+       int ret;
+
+       if (!unit_log)
+               return 0;
+
+       ret = __write_log(td, td->clat_hist_log, try);
+       if (!ret)
+               td->clat_hist_log = NULL;
+
+       return ret;
+}
+
 static int write_lat_log(struct thread_data *td, int try, bool unit_log)
 {
        int ret;
@@ -1348,8 +1452,9 @@ enum {
        SLAT_LOG_MASK   = 4,
        CLAT_LOG_MASK   = 8,
        IOPS_LOG_MASK   = 16,
+       CLAT_HIST_LOG_MASK = 32,
 
-       ALL_LOG_NR      = 5,
+       ALL_LOG_NR      = 6,
 };
 
 struct log_type {
@@ -1378,6 +1483,10 @@ static struct log_type log_types[] = {
                .mask   = IOPS_LOG_MASK,
                .fn     = write_iops_log,
        },
+       {
+               .mask   = CLAT_HIST_LOG_MASK,
+               .fn     = write_clat_hist_log,
+       }
 };
 
 void td_writeout_logs(struct thread_data *td, bool unit_logs)