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| author | Pjotr Prins | 2024-12-17 08:12:35 +0100 |
|---|---|---|
| committer | Pjotr Prins | 2025-01-17 08:33:17 -0600 |
| commit | 2ec9dd71f8bbd0c2a9b68ead05af18436bc3ccad (patch) | |
| tree | 96706b594c31e3c022138a45b8347189b3024143 /topics | |
| parent | 08ee8147fbecdcb4b6e18abbbe5e91fae43a85d8 (diff) | |
| download | gn-gemtext-2ec9dd71f8bbd0c2a9b68ead05af18436bc3ccad.tar.gz | |
Performance: test read/write performance SSDs. Note that this not reflect mixed IO.
Diffstat (limited to 'topics')
| -rw-r--r-- | topics/systems/hpc/performance.gmi | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/topics/systems/hpc/performance.gmi b/topics/systems/hpc/performance.gmi index ce6a111..ac5e861 100644 --- a/topics/systems/hpc/performance.gmi +++ b/topics/systems/hpc/performance.gmi @@ -12,6 +12,23 @@ For disk speeds make sure there is no load and run hdparm -Ttv /dev/sdc1 ``` +Cheap and cheerful: + +Read test: + +``` +dd if=/dev/zero of=./test bs=512k count=2048 oflag=direct +``` + +Write test: + +``` +/sbin/sysctl -w vm.drop_caches=3 +dd if=./test of=/dev/zero bs=512k count=2048 +``` + + + ## Networking To check the network devices installed use |