+ s = get_sample(log, cur_log, i);
+ ret = __deflate_pdu_buffer(s, sample_sz, &out_pdu, &entry, stream, first);
+ if (ret)
+ return ret;
+
+ /* Do the subtraction on server side so that client doesn't have to
+ * reconstruct our linked list from packets.
+ */
+ cur_plat_entry = s->data.plat_entry;
+ prev_plat_entry = flist_first_entry(&cur_plat_entry->list, struct io_u_plat_entry, list);
+ cur_plat = cur_plat_entry->io_u_plat;
+ prev_plat = prev_plat_entry->io_u_plat;
+
+ for (j = 0; j < FIO_IO_U_PLAT_NR; j++) {
+ cur_plat[j] -= prev_plat[j];
+ }
+
+ flist_del(&prev_plat_entry->list);
+ free(prev_plat_entry);
+
+ ret = __deflate_pdu_buffer(cur_plat_entry, sizeof(*cur_plat_entry),
+ &out_pdu, &entry, stream, first);
+
+ if (ret)
+ return ret;
+ }
+
+ __fio_net_prep_tail(stream, out_pdu, &entry, first);
+
+ return 0;
+}
+
+static int __fio_append_iolog_gz(struct sk_entry *first, struct io_log *log,
+ struct io_logs *cur_log, z_stream *stream)
+{
+ unsigned int this_len;
+ void *out_pdu;
+ int ret;
+
+ if (log->log_type == IO_LOG_TYPE_HIST)
+ return __fio_append_iolog_gz_hist(first, log, cur_log, stream);
+
+ stream->next_in = (void *) cur_log->log;
+ stream->avail_in = cur_log->nr_samples * log_entry_sz(log);
+
+ do {
+ struct sk_entry *entry;
+
+ /*
+ * Dirty - since the log is potentially huge, compress it into
+ * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
+ * side defragment it.
+ */
+ out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
+
+ stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
+ stream->next_out = out_pdu;
+ ret = deflate(stream, Z_BLOCK);
+ /* may be Z_OK, or Z_STREAM_END */
+ if (ret < 0) {
+ free(out_pdu);
+ return 1;
+ }
+
+ this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out;
+
+ entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
+ NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
+ flist_add_tail(&entry->list, &first->next);
+ } while (stream->avail_in);
+
+ return 0;
+}
+
+static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
+{
+ int ret = 0;
+ z_stream stream;
+
+ memset(&stream, 0, sizeof(stream));