Re: The file removal performance is very low by mdtest
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Wang, Shilong
Try to explicitly set the object class for files and directories – the defaults are not providing the best performance for mdtest-like workloads: --dfs.oclass=S1 --dfs.dir_oclass=SX
From: daos@daos.groups.io <daos@daos.groups.io> On Behalf Of
Groot
Sent: Wednesday, April 13, 2022 11:15 AM To: daos@daos.groups.io Subject: [daos] The file removal performance is very low by mdtest
I install the DAOS and use the mdtest to do some test with -a DFS (one server and one client with 20 cores, the server use 256G DCPM without nvme ssd). But I find the file removal performance is very low and the result shown as follow and I want to know
if it is right? Or how to do the performance turning? access_points: ['server-1'] port: 10001 transport_config: allow_insecure: false client_cert_dir: /etc/daos/certs/clients ca_cert: /etc/daos/certs/daosCA.crt cert: /etc/daos/certs/server.crt key: /etc/daos/certs/server.key provider: ofi+verbs;ofi_rxm control_log_mask: INFO control_log_file: /tmp/daos_server.log helper_log_file: /tmp/daos_admin.log telemetry_port: 9191
engines: - targets: 20 nr_xs_helpers: 20 fabric_iface: ib0 fabric_iface_port: 31316 log_mask: ERR log_file: /tmp/daos_engine_0.log scm_mount: /mnt/daos0 scm_class: dcpm scm_list: [/dev/pmem0]
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