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Diffstat (limited to 'doc/administration/operations/filesystem_benchmarking.md')
| -rw-r--r-- | doc/administration/operations/filesystem_benchmarking.md | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/doc/administration/operations/filesystem_benchmarking.md b/doc/administration/operations/filesystem_benchmarking.md index 6119fcdae45..ffce104e1ad 100644 --- a/doc/administration/operations/filesystem_benchmarking.md +++ b/doc/administration/operations/filesystem_benchmarking.md @@ -8,7 +8,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w File system performance has a big impact on overall GitLab performance, especially for actions that read or write to Git repositories. This information -will help benchmark file system performance against known good and bad real-world +helps benchmark file system performance against known good and bad real-world systems. Normally when talking about file system performance the biggest concern is @@ -35,12 +35,12 @@ Then run the following: fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --bs=4k --iodepth=64 --readwrite=randrw --rwmixread=75 --size=4G --filename=/path/to/git-data/testfile ``` -This will create a 4GB file in `/path/to/git-data/testfile`. It performs +This creates a 4GB file in `/path/to/git-data/testfile`. It performs 4KB reads and writes using a 75%/25% split within the file, with 64 operations running at a time. Be sure to delete the file after the test completes. -The output will vary depending on what version of `fio` installed. The following +The output varies depending on what version of `fio` installed. The following is an example output from `fio` v2.2.10 on a networked solid-state drive (SSD): ```plaintext @@ -78,8 +78,8 @@ test but still have poor performance due to read speed and various other factors. The following one-line commands provide a quick benchmark for file system write and read -performance. This will write 1,000 small files to the directory in which it is -executed, and then read the same 1,000 files. +performance. This writes 1,000 small files to the directory in which it is +executed, and then reads the same 1,000 files. 1. Change into the root of the appropriate [repository storage path](../repository_storage_paths.md). @@ -107,7 +107,7 @@ executed, and then read the same 1,000 files. cd ../; rm -rf test ``` -The output of the `time for ...` commands will look similar to the following. The +The output of the `time for ...` commands resemble the following. The important metric is the `real` time. ```shell |