$ git clone https://github.com/ceph/ceph.git
$ cd ceph
$ export CEPH_HOME="$(pwd)"
$ # build ceph following the instructions from https://docs.ceph.com/docs/master/dev/quick_guide/
$ ./install-deps.sh
$ ./do_cmake.sh -DWITH_MANPAGE=OFF -DWITH_BABELTRACE=OFF -DWITH_MGR_DASHBOARD_FRONTEND=OFF
$ cd build
ljishen
/ run_fio_rados_engine_on_local_dev_ceph.md
Last active
February 15, 2020 18:10
Instructions for running Fio rados engine on the local dev environment of Ceph
ljishen
/ gist:e9629541dc7ac82cdbf0d2488bc752e2
Created
January 24, 2020 06:40
— forked from zeuxisoo/gist:980174
How to use git diff to patch file
Since the versino of Cuttlefish, Ceph introduced objecter_inflight_ops/objecter_inflight_op_bytes throttles that tell objecter to throttle outgoing ops according its budget. Usually, when you run rados bench, in the command line you will speicify the parameter -b for the object size and parameter -t for the number of threads that used in the test. If you don't correctly update the configuration objecter_inflight_ops/objecter_inflight_op_bytes according to the test parameters, you will see multiple lines of 0 output at the begining of the rados bench output. Here is an example result from an incorrect configuration:
$ bin/rados bench -p rados 60 write -b 4M -t 128 --show-time --write-object --no-hints
hints = 0
2020-01-22 15:24:47.443047 Maintaining 128 concurrent writes of 4194304 bytes to objects of size 4194304 for up to 60 seconds or 0 objects
2020-01-22 15:24:47.443106 Object prefix: benchmark_data_pl2_2784201
2020-01-22 15:24:47.852077 sec Cur ops started finished avg MB/s cur MB/
ljishen
/ bandwidth_iperf3.md
Last active
November 25, 2019 18:35
How to evaluate network throughput with iperf3?
This process only applies to the connection bandwidth below 40Gbps. For higher bandwidth evaluation, check out the post iperf3 at 40Gbps and above.
iperf3 -B <server_ip> -sFor example,
iperf3 -B 10.0.1.20 -s