| Age | Commit message (Collapse) | Author |
|---|
|
This change optimizes the OpenDC VM trace format by removing
unnecessary columns as well as optimizing the writer settings.
The new implementation still supports reading the old trace format in
case users run OpenDC with older workload traces.
|
|
This change adds official support to the trace library for the internal
VM trace format used by OpenDC for its experiments. This is a compact
format that uses Parquet to store the virtual machine trace data in two
Parquet files.
|
|
This change adds support in the trace library for the Azure VM trace
format.
|
|
This change adds support in the trace library for the extended Bitbrains
format. This format is slightly different than the CSV format used by
the original Bitbrains traces and contains more fields.
|
|
This change creates a new module for doing simulations with virtual
machine workloads. We have found that a lot of code in the Capelin
experiments code is being re-used by non-experiment modules.
|
|
This change enables users to open traces of various trace formats by
dynamically specifying the format name. The trace API will use the
service loader to resolve the available trace formats on the classpath.
|
|
This change adds a synthetic resource table for the Bitbrains format,
which can be used to list the available partitions in the trace.
|
|
This change adds a new API to the Table interface for accessing the
table columns that the table supports. This does not necessarily mean
that the column will have a value for every row, but that the table
format has defined this particular column.
|
|
This change adds support for reading WfCommons workflow traces in
OpenDC. This functionality is available in the new
`opendc-trace-wfformat` module.
|
|
This change removes the external class that holds the state of the
reader and instead puts the state in the reader implementation.
Maintaining a separate class for the state increases the complexity and
has worse performance characteristics due to the bytecode produced by
Kotlin for property accesses.
|
|
This change adds support for the Materna traces from the Grid Workload
Trace Archive (GWA). These traces are very similar to the Bitbrains
traces, so they share the same base implementation.
|
|
|
|
This change updates the trace reading classes in the Capelin experiment
to use the new trace API in order to re-use many of the trace reading
parts.
|
|
This change updates the WTF trace reader to support the new streaming
trace API.
|
|
This change updates the SWF trace reader to support the new streaming
trace API.
|
|
This change moves Bitbrains trace support into a separate module and
adds support for the new trace api.
|
|
This change extracts the Parquet helpers outside format module into a
new module, in order to improve re-usability of these helpers.
|
|
This change starts the process of moving the different trace formats into
separate modules. This change in particular moves the GWF trace format
into a new module, opendc-trace-gwf.
Furthermore, this change also implements the trace API for the GWF
module.
|
|
This change introduces a new OpenDC API for reading various trace
formats in a streaming manner.
|
