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Add READMEs and Makefile to build and integrate LIKWID
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Thomas Roehl
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46
README.md
46
README.md
@ -9,33 +9,31 @@ Open questions:
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# Configuration
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Configuration is implemented using a single json document that is distributed over network and may be persisted as file.
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Granularity can be either `node`, or `core`. Frequency can be set on a per measurement basis.
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Supported metrics are documented [here](https://github.com/ClusterCockpit/cc-specifications/blob/master/metrics/lineprotocol.md).
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``` json
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{
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"sink": "db.monitoring.center.de",
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"report": {
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levels: ["core","node"],
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interval: 120
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},
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"schedule": {
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"core": {
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"frequency": 30,
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"duration": 10},
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"node":{
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"frequency": 60,
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"duration": 20}
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},
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"metrics": [
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"ipc",
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"flops_any",
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"clock",
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"load",
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"mem_bw",
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"mem_used",
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"net_bw",
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"file_bw"
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]
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"sink": {
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"user": "admin",
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"password": "12345",
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"host": "localhost",
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"port": "8080",
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"database": "testdb",
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"type": "stdout"
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},
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"interval" : 3,
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"duration" : 1,
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"collectors": [
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"memstat",
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"likwid",
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"loadavg",
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"netstat",
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"ibstat",
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"lustrestat"
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]
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}
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```
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All available collectors are listed in the above JSON. There are currently two sinks supported `influxdb` and `stdout`. The `interval` defines how often the metrics should be read and send to the sink. The `duration` tells collectors how long one measurement has to take. An example for this is the `likwid` collector which starts the hardware performance counter, waits for `duration` seconds and stops the counters again. For most systems, the `likwid` collector has to do two measurements, thus `interval` must be larger than two times `duration`.
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@ -1,7 +1,13 @@
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# LIKWID version
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LIKWID_VERSION = 5.1.0
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# Target user for LIKWID's accessdaemon
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DAEMON_USER=root
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# Target group for LIKWID's accessdaemon
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DAEMON_GROUP=root
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#################################################
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# No need to change anything below this line
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#################################################
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INSTALL_FOLDER = ./likwid
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BUILD_FOLDER = ./likwid/build
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53
collectors/README.md
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53
collectors/README.md
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This folder contains the collectors for the cc-metric-collector.
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# `metricCollector.go`
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The base class/configuration is located in `metricCollector.go`.
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# Collectors
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* `memstatMetric.go`: Reads `/proc/meminfo` to calculate the **node** metric `mem_used`
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* `loadavgMetric.go`: Reads `/proc/loadavg` and submits the **node** metrics:
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* `load_one`
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* `load_five`
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* `load_fifteen`
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* `netstatMetric.go`: Reads `/proc/net/dev` and submits for all network devices (except loopback `lo`) the **node** metrics:
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* `<dev>_bytes_in`
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* `<dev>_bytes_out`
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* `<dev>_pkts_in`
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* `<dev>_pkts_out`
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* `lustreMetric.go`: Reads Lustre's stats file `/proc/fs/lustre/llite/lnec-XXXXXX/stats` and submits the **node** metrics:
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* `read_bytes`
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* `read_requests`
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* `write_bytes`
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* `write_bytes`
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* `open`
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* `close`
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* `getattr`
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* `setattr`
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* `statfs`
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* `inode_permission`
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* `infinibandMetric.go`: Reads InfiniBand LID from `/sys/class/infiniband/mlx4_0/ports/1/lid` and uses the `perfquery` command to read the **node** metrics:
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* `ib_recv`
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* `ib_xmit`
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* `likwidMetric.go`: Reads hardware performance events using LIKWID. It submits **socket** and **cpu** metrics:
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* `mem_bw` (socket)
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* `power` (socket, Sum of RAPL domains PKG and DRAM)
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* `flops_dp` (cpu)
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* `flops_sp` (cpu)
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* `flops_any` (cpu, `2*flops_dp + flops_sp`)
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* `cpi` (cpu)
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* `clock` (cpu)
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# Installation
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Only the `likwidMetric.go` requires preparation steps. For this, the `Makefile` can be used. The LIKWID build needs to be configured:
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* Version of LIKWID in `LIKWID_VERSION`
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* Target user for LIKWID's accessdaemon in `DAEMON_USER`. The user has to have enough permissions to read the `msr` and `pci` device files
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* Target group for LIKWID's accessdaemon in `DAEMON_GROUP`
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It performs the following steps:
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* Download LIKWID tarball
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* Unpacking
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* Adjusting configuration for LIKWID build
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* Build it
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* Copy all required files into `collectors/likwid`
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* The accessdaemon is installed with the suid bit set using `sudo` also into `collectors/likwid`
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12
sinks/README.md
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12
sinks/README.md
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This folder contains the sinks for the cc-metric-collector.
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# `sink.go`
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The base class/configuration is located in `sink.go`.
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# Sinks
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There are currently two sinks shipped with the cc-metric-collector:
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* `stdoutSink.go`: Writes all metrics to `stdout` in InfluxDB line protocol. The sink does not use https://github.com/influxdata/line-protocol to reduce the executed code for debugging
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* `influxSink.go`: Writes all metrics to an InfluxDB database instance using a blocking writer. It uses https://github.com/influxdata/influxdb-client-go . Configuration for the server, port, user, password and database name are in the global configuration file
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# Installation
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Nothing to do, all sinks are pure Go code
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