Testing SFS Turbo Performance

Fio is an open-source I/O tester. You can use fio to test the throughput and IOPS of SFS Turbo file systems.

Fio has been installed on the cloud server. You can download fio from its official website or GitHub.

The test performance depends on the network bandwidth between the client and server, as well as the capacity of the file system.

The following uses a Linux CentOS system as an example:

Table 1 lists the performance metrics of SFS Turbo file systems including IOPS and throughput.

**Table 1** File system performance data
Parameter	20 MB/s/TiB	40 MB/s/TiB	125 MB/s/TiB	250 MB/s/TiB	500 MB/s/TiB	1,000 MB/s/TiB
Max. capacity	1 PB	1 PB	1 PB	1 PB	1 PB	1 PB
Max. IOPS	250,000	250,000	1 million	1 million	4 million	4 million
Max. throughput	8 GB/s You can submit a service ticket to get up to 20 GB/s of throughput.	8 GB/s You can submit a service ticket to get up to 20 GB/s of throughput.	20 GB/s You can submit a service ticket to get up to 100 GB/s of throughput.	20 GB/s You can submit a service ticket to get up to 100 GB/s of throughput.	80 GB/s	80 GB/s
Formula used to calculate the IOPS	IOPS = Min. (250,000, 600 x Capacity) Capacity unit: TB	IOPS = Min. (250,000, 1,200 x Capacity) Capacity unit: TB	IOPS = Min. (1,000,000, 6,000 x Capacity) Capacity unit: TB	IOPS = Min. (1,000,000, 12,500 x Capacity) Capacity unit: TB	IOPS = Min. (4,000,000, 25,000 x Capacity) Capacity unit: TB	IOPS = Min. (4,000,000, 50,000 x Capacity) Capacity unit: TB

The following estimated values are obtained from the test on a single ECS. You are advised to use multiple ECSs to test the SFS Turbo performance.

In the following example, an SFS Turbo Performance file system and an ECS with the following specifications are used for illustration.

Specifications: General computing-plus | c3.xlarge.4 | 4 vCPUs | 16 GB

Image: CentOS 7.5 64-bit

fio command:
fio --randrepeat=1 --ioengine=libaio --name=test -output=output.log --direct=1 --filename=/mnt/nfs/test_fio --bs=4k --iodepth=128 --size=10240M --readwrite=rw --rwmixwrite=30 --fallocate=none

Variable /mnt/nfs/test_fio is the location of the file to be tested. The location must be specific to the file name, which is the test_fio file in the /mnt/nfs directory in this example. Set it based on the site requirements.
fio result:

fio command:
fio --randrepeat=1 --ioengine=libaio --name=test -output=output.log --direct=1 --filename=/mnt/nfs/test_fio --bs=4k --iodepth=128 --size=10240M --readwrite=rw --rwmixwrite=70 --fallocate=none

Variable /mnt/nfs/test_fio is the location of the file to be tested. The location must be specific to the file name, which is the test_fio file in the /mnt/nfs directory in this example. Set it based on the site requirements.
fio result:

Sequential read IOPS

fio command:
fio --ioengine=libaio --direct=1 --fallocate=none --time_based=1 --group_reporting=1 --name=iops_fio --directory=/mnt/sfs-turbo/ --rw=read --bs=4k --size=1G --iodepth=128 --runtime=120 --numjobs=10

Variable /mnt/sfs-turbo/ is the location of the file to be tested. The location must be specific to the file name. Set it to the actual file name.
fio result:

Random read IOPS

fio command:
fio --ioengine=libaio --direct=1 --fallocate=none --time_based=1 --group_reporting=1 --name=iops_fio --directory=/mnt/sfs-turbo/ --rw=randread --bs=4k --size=1G --iodepth=128 --runtime=120 --numjobs=10

Variable /mnt/sfs-turbo/ is the location of the file to be tested. The location must be specific to the file name. Set it to the actual file name.
fio result:

Sequential write IOPS

fio command:
fio --ioengine=libaio --direct=1 --fallocate=none --time_based=1 --group_reporting=1 --name=iops_fio --directory=/mnt/sfs-turbo/ --rw=write --bs=4k --size=1G --iodepth=128 --runtime=120 --numjobs=10

Variable /mnt/sfs-turbo/ is the location of the file to be tested. The location must be specific to the file name. Set it to the actual file name.
fio result:

Random write IOPS

fio command:
fio --ioengine=libaio --direct=1 --fallocate=none --time_based=1 --group_reporting=1 --name=iops_fio --directory=/mnt/sfs-turbo/ --rw=randwrite --bs=4k --size=1G --iodepth=128 --runtime=120 --numjobs=10

Variable /mnt/sfs-turbo/ is the location of the file to be tested. The location must be specific to the file name. Set it to the actual file name.
fio result:

Sequential read bandwidth

fio command:
fio --randrepeat=1 --ioengine=libaio --name=test -output=output.log --direct=1 --filename=/mnt/sfs-turbo/test_fio --bs=1M --iodepth=128 --size=10240M --readwrite=read --fallocate=none

Variable /mnt/sfs-turbo/test_fio is the location of the file to be tested. The location must be specific to the file name, which is the test_fio file in the /mnt/sfs-turbo directory in this example. Set it based on the site requirements.
fio result:

Random read bandwidth

fio command:
fio --ioengine=libaio --direct=1 --fallocate=none --time_based=1 --group_reporting=1 --name=iops_fio --directory=/mnt/sfs-turbo/ --rw=randread --bs=1M --size=10G --iodepth=128 --runtime=120 --numjobs=1

Variable /mnt/sfs-turbo/ is the location of the file to be tested. The location must be specific to the file name. Set it to the actual file name.
fio result:

Sequential write bandwidth

fio command:
fio --ioengine=libaio --direct=1 --fallocate=none --time_based=1 --group_reporting=1 --name=iops_fio --directory=/mnt/sfs-turbo/ --rw=write --bs=1M --size=10G --iodepth=128 --runtime=120 --numjobs=1

Variable /mnt/sfs-turbo/ is the location of the file to be tested. The location must be specific to the file name. Set it to the actual file name.
fio result:

Random write bandwidth

fio command:
fio --ioengine=libaio --direct=1 --fallocate=none --time_based=1 --group_reporting=1 --name=iops_fio --directory=/mnt/sfs-turbo/ --rw=randwrite --bs=1M --size=10G --iodepth=128 --runtime=120 --numjobs=1

Variable /mnt/sfs-turbo/ is the location of the file to be tested. The location must be specific to the file name. Set it to the actual file name.
fio result: