-#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,%lu\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;
- /*
- * work around, this needs a format change to work for > 1 file
- */
- if (!io_u->file)
- io_u->file = &td->files[0];
- free(ipo);
- return 0;
- }
-
- return 1;
-}
-
-void prune_io_piece_log(struct thread_data *td)
-{
- struct io_piece *ipo;
- struct rb_node *n;
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdarg.h>
+#include <syslog.h>
- while ((n = rb_first(&td->io_hist_tree)) != NULL) {
- ipo = rb_entry(n, struct io_piece, rb_node);
- rb_erase(n, &td->io_hist_tree);
- free(ipo);
- }
-}
+#include "fio.h"
-/*
- * log a successful write, so we can unwind the log for verify
- */
-void log_io_piece(struct thread_data *td, struct io_u *io_u)
+int log_valist(const char *str, va_list args)
{
- struct rb_node **p, *parent;
- struct io_piece *ipo, *__ipo;
-
- ipo = malloc(sizeof(struct io_piece));
- ipo->file = io_u->file;
- ipo->offset = io_u->offset;
- ipo->len = io_u->buflen;
-
- /*
- * 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.
- */
- if (!td_random(td) || !td->o.overwrite ||
- (io_u->file->flags & FIO_FILE_NOSORT)) {
- INIT_LIST_HEAD(&ipo->list);
- list_add_tail(&ipo->list, &td->io_hist_list);
- return;
- }
+ char buffer[1024];
+ size_t len;
- RB_CLEAR_NODE(&ipo->rb_node);
- p = &td->io_hist_tree.rb_node;
- parent = NULL;
-
- /*
- * Sort the entry into the verification list
- */
- while (*p) {
- parent = *p;
-
- __ipo = rb_entry(parent, struct io_piece, rb_node);
- if (ipo->offset <= __ipo->offset)
- p = &(*p)->rb_left;
- else
- p = &(*p)->rb_right;
- }
+ len = vsnprintf(buffer, sizeof(buffer), str, args);
- rb_link_node(&ipo->rb_node, parent, p);
- rb_insert_color(&ipo->rb_node, &td->io_hist_tree);
-}
+ if (log_syslog)
+ syslog(LOG_INFO, "%s", buffer);
+ else
+ len = fwrite(buffer, len, 1, f_out);
-void write_iolog_close(struct thread_data *td)
-{
- fflush(td->iolog_f);
- fclose(td->iolog_f);
- free(td->iolog_buf);
+ return len;
}
-/*
- * Open a stored log and read in the entries.
- */
-static int init_iolog_read(struct thread_data *td)
+int log_local(const char *format, ...)
{
- unsigned long long offset;
- unsigned int bytes;
- char *str, *p;
- FILE *f;
- int rw, reads, writes;
-
- f = fopen(td->o.read_iolog_file, "r");
- if (!f) {
- perror("fopen read iolog");
- return 1;
- }
+ char buffer[1024];
+ va_list args;
+ size_t len;
- /*
- * 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 if (rw != DDIR_SYNC) {
- log_err("bad ddir: %d\n", rw);
- continue;
- }
-
- ipo = malloc(sizeof(*ipo));
- memset(ipo, 0, sizeof(*ipo));
- INIT_LIST_HEAD(&ipo->list);
- ipo->offset = offset;
- ipo->len = bytes;
- ipo->ddir = (enum fio_ddir) rw;
- if (bytes > td->o.max_bs[rw])
- td->o.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->o.td_ddir = TD_DDIR_READ;
- else if (!reads && writes)
- td->o.td_ddir = TD_DDIR_WRITE;
+ if (log_syslog)
+ syslog(LOG_INFO, "%s", buffer);
else
- td->o.td_ddir = TD_DDIR_RW;
+ len = fwrite(buffer, len, 1, f_out);
- return 0;
+ return len;
}
-/*
- * Setup a log for storing io patterns.
- */
-static int init_iolog_write(struct thread_data *td)
+int log_info(const char *format, ...)
{
- FILE *f;
+ char buffer[1024];
+ va_list args;
+ size_t len;
- if (td->o.nr_files > 1) {
- log_err("fio: write_iolog only works with 1 file currently\n");
- return 1;
- }
-
- f = fopen(td->o.write_iolog_file, "w+");
- if (!f) {
- perror("fopen write iolog");
- return 1;
- }
+ va_start(args, format);
+ len = vsnprintf(buffer, sizeof(buffer), format, args);
+ va_end(args);
- /*
- * 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;
+ if (is_backend)
+ return fio_server_text_output(buffer, len);
+ else
+ return fwrite(buffer, len, 1, f_out);
}
-int init_iolog(struct thread_data *td)
+int log_err(const char *format, ...)
{
- int ret = 0;
-
- if (td->io_ops->flags & FIO_DISKLESSIO)
- return 0;
-
- if (td->o.read_iolog_file) {
- /*
- * Check if it's a blktrace file and load that if possible.
- * Otherwise assume it's a normal log file and load that.
- */
- if (is_blktrace(td->o.read_iolog_file))
- ret = load_blktrace(td, td->o.read_iolog_file);
- else
- ret = init_iolog_read(td);
- } else if (td->o.write_iolog_file)
- ret = init_iolog_write(td);
-
- return ret;
-}
+ char buffer[1024];
+ va_list args;
+ size_t len;
-void setup_log(struct io_log **log)
-{
- struct io_log *l = malloc(sizeof(*l));
+ va_start(args, format);
+ len = vsnprintf(buffer, sizeof(buffer), format, args);
+ va_end(args);
- l->nr_samples = 0;
- l->max_samples = 1024;
- l->log = malloc(l->max_samples * sizeof(struct io_sample));
- *log = l;
-}
+ if (is_backend)
+ return fio_server_text_output(buffer, len);
+ else {
+ if (f_err != stderr) {
+ int fio_unused ret;
-void __finish_log(struct io_log *log, const char *name)
-{
- unsigned int i;
- FILE *f;
+ ret = fwrite(buffer, len, 1, stderr);
+ }
- f = fopen(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);
-}
-
-void finish_log(struct thread_data *td, struct io_log *log, const char *name)
-{
- char file_name[256];
-
- snprintf(file_name, 200, "client%d_%s.log", td->thread_number, name);
- __finish_log(log, file_name);
}
projects / fio.git / blobdiff