From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 27 Oct 2006 09:30:07 +0000 (+0200)
Subject: [PATCH cpu io threads need not have lots of stuff setup
X-Git-Tag: fio-1.8~32
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=f48b467cba78af0843c7320caf841e2bee72fb1e;p=fio.git

[PATCH cpu io threads need not have lots of stuff setup

Everything that has to do with io can be skipped.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/fio.c b/fio.c
index 234822ee..81e9e90d 100644
--- a/fio.c
+++ b/fio.c
@@ -518,6 +518,9 @@ static int switch_ioscheduler(struct thread_data *td)
 	FILE *f;
 	int ret;
 
+	if (td->io_ops->flags & FIO_CPUIO)
+		return 0;
+
 	sprintf(tmp, "%s/queue/scheduler", td->sysfs_root);
 
 	f = fopen(tmp, "r+");
diff --git a/init.c b/init.c
index f27fdf1f..b0c35f10 100644
--- a/init.c
+++ b/init.c
@@ -604,6 +604,9 @@ int init_random_state(struct thread_data *td)
 	int fd, num_maps, blocks, i;
 	struct fio_file *f;
 
+	if (td->io_ops->flags & FIO_CPUIO)
+		return 0;
+
 	fd = open("/dev/urandom", O_RDONLY);
 	if (fd == -1) {
 		td_verror(td, errno);
diff --git a/log.c b/log.c
index 13435560..b1511647 100644
--- a/log.c
+++ b/log.c
@@ -172,6 +172,9 @@ 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)