-#include <stdio.h>
-#include <stdlib.h>
-#include "list.h"
-#include "fio.h"
-
-void write_iolog_put(struct thread_data *td, struct io_u *io_u)
-{
- fprintf(td->iolog_f, "%u,%llu,%u\n", io_u->ddir, io_u->offset, io_u->buflen);
-}
-
-int read_iolog_get(struct thread_data *td, struct io_u *io_u)
-{
- struct io_piece *ipo;
-
- if (!list_empty(&td->io_log_list)) {
- ipo = list_entry(td->io_log_list.next, struct io_piece, list);
- list_del(&ipo->list);
- io_u->offset = ipo->offset;
- io_u->buflen = ipo->len;
- io_u->ddir = ipo->ddir;
- io_u->file = ipo->file;
- free(ipo);
- return 0;
- }
-
- return 1;
-}
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdarg.h>
-void prune_io_piece_log(struct thread_data *td)
-{
- struct io_piece *ipo;
-
- while (!list_empty(&td->io_hist_list)) {
- ipo = list_entry(td->io_hist_list.next, struct io_piece, list);
-
- list_del(&ipo->list);
- free(ipo);
- }
-}
+#include "fio.h"
-/*
- * log a succesful write, so we can unwind the log for verify
- */
-void log_io_piece(struct thread_data *td, struct io_u *io_u)
+int log_local(const char *format, ...)
{
- struct io_piece *ipo = malloc(sizeof(struct io_piece));
- struct list_head *entry;
-
- INIT_LIST_HEAD(&ipo->list);
- ipo->file = io_u->file;
- ipo->offset = io_u->offset;
- ipo->len = io_u->buflen;
-
- /*
- * for random io where the writes extend the file, it will typically
- * be laid out with the block scattered as written. it's faster to
- * read them in in that order again, so don't sort
- */
- if (td->sequential || !td->overwrite) {
- list_add_tail(&ipo->list, &td->io_hist_list);
- return;
- }
-
- /*
- * for random io, sort the list so verify will run faster
- */
- entry = &td->io_hist_list;
- while ((entry = entry->prev) != &td->io_hist_list) {
- struct io_piece *__ipo = list_entry(entry, struct io_piece, list);
-
- if (__ipo->offset < ipo->offset)
- break;
- }
+ char buffer[1024];
+ va_list args;
+ size_t len;
- list_add(&ipo->list, entry);
-}
+ va_start(args, format);
+ len = vsnprintf(buffer, sizeof(buffer), format, args);
+ va_end(args);
-void write_iolog_close(struct thread_data *td)
-{
- fflush(td->iolog_f);
- fclose(td->iolog_f);
- free(td->iolog_buf);
+ return fwrite(buffer, len, 1, f_out);
}
-/*
- * Open a stored log and read in the entries.
- */
-static int init_iolog_read(struct thread_data *td)
+int log_info(const char *format, ...)
{
- unsigned long long offset;
- unsigned int bytes;
- char *str, *p;
- FILE *f;
- int rw, reads, writes;
-
- f = fopen(td->read_iolog_file, "r");
- if (!f) {
- perror("fopen read iolog");
- return 1;
- }
-
- /*
- * Read in the read iolog and store it, reuse the infrastructure
- * for doing verifications.
- */
- str = malloc(4096);
- reads = writes = 0;
- while ((p = fgets(str, 4096, f)) != NULL) {
- struct io_piece *ipo;
-
- if (sscanf(p, "%d,%llu,%u", &rw, &offset, &bytes) != 3) {
- log_err("bad iolog: %s\n", p);
- continue;
- }
- if (rw == DDIR_READ)
- reads++;
- else if (rw == DDIR_WRITE)
- writes++;
- else {
- log_err("bad ddir: %d\n", rw);
- continue;
- }
+ char buffer[1024];
+ va_list args;
+ size_t len;
- ipo = malloc(sizeof(*ipo));
- INIT_LIST_HEAD(&ipo->list);
- ipo->offset = offset;
- ipo->len = bytes;
- ipo->ddir = (enum fio_ddir) rw;
- if (bytes > td->max_bs[rw])
- td->max_bs[rw] = bytes;
- list_add_tail(&ipo->list, &td->io_log_list);
- }
-
- free(str);
- fclose(f);
+ va_start(args, format);
+ len = vsnprintf(buffer, sizeof(buffer), format, args);
+ va_end(args);
- if (!reads && !writes)
- return 1;
- else if (reads && !writes)
- td->ddir = DDIR_READ;
- else if (!reads && writes)
- td->ddir = DDIR_READ;
+ if (is_backend)
+ return fio_server_text_output(buffer, len);
else
- td->iomix = 1;
-
- return 0;
-}
-
-/*
- * Setup a log for storing io patterns.
- */
-static int init_iolog_write(struct thread_data *td)
-{
- FILE *f;
-
- f = fopen(td->write_iolog_file, "w+");
- if (!f) {
- perror("fopen write iolog");
- return 1;
- }
-
- /*
- * That's it for writing, setup a log buffer and we're done.
- */
- td->iolog_f = f;
- td->iolog_buf = malloc(8192);
- setvbuf(f, td->iolog_buf, _IOFBF, 8192);
- return 0;
-}
-
-int init_iolog(struct thread_data *td)
-{
- int ret = 0;
-
- if (td->io_ops->flags & FIO_CPUIO)
- return 0;
-
- if (td->read_iolog_file)
- ret = init_iolog_read(td);
- else if (td->write_iolog_file)
- ret = init_iolog_write(td);
-
- return ret;
-}
-
-int setup_rate(struct thread_data *td)
-{
- unsigned long long rate;
- int nr_reads_per_msec;
-
- if (!td->rate)
- return 0;
-
- if (td->rate < td->ratemin) {
- log_err("min rate larger than nominal rate\n");
- return -1;
- }
-
- rate = td->rate;
- nr_reads_per_msec = (rate * 1024 * 1000) / td->min_bs[DDIR_READ];
- if (!nr_reads_per_msec) {
- log_err("rate lower than supported\n");
- return -1;
- }
-
- td->rate_usec_cycle = 1000000000ULL / nr_reads_per_msec;
- td->rate_pending_usleep = 0;
- return 0;
+ return fwrite(buffer, len, 1, f_out);
}
-void setup_log(struct io_log **log)
+int log_err(const char *format, ...)
{
- struct io_log *l = malloc(sizeof(*l));
+ char buffer[1024];
+ va_list args;
+ size_t len;
- l->nr_samples = 0;
- l->max_samples = 1024;
- l->log = malloc(l->max_samples * sizeof(struct io_sample));
- *log = l;
-}
+ va_start(args, format);
+ len = vsnprintf(buffer, sizeof(buffer), format, args);
+ va_end(args);
-void finish_log(struct thread_data *td, struct io_log *log, const char *name)
-{
- char file_name[256];
- FILE *f;
- unsigned int i;
+ if (is_backend)
+ return fio_server_text_output(buffer, len);
+ else {
+ if (f_err != stderr)
+ fwrite(buffer, len, 1, stderr);
- snprintf(file_name, 200, "client%d_%s.log", td->thread_number, name);
- f = fopen(file_name, "w");
- if (!f) {
- perror("fopen log");
- return;
+ return fwrite(buffer, len, 1, f_err);
}
-
- for (i = 0; i < log->nr_samples; i++)
- fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
-
- fclose(f);
- free(log->log);
- free(log);
}
projects / fio.git / blobdiff