From 71566b75f66414d9e14ca740d55200af86a288d7 Mon Sep 17 00:00:00 2001 From: vuule Date: Fri, 4 Feb 2022 11:17:22 -0800 Subject: [PATCH] docs --- docs/cudf/source/basics/io-gds-integration.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docs/cudf/source/basics/io-gds-integration.rst b/docs/cudf/source/basics/io-gds-integration.rst index 20f3ec87ccb..71c114e9149 100644 --- a/docs/cudf/source/basics/io-gds-integration.rst +++ b/docs/cudf/source/basics/io-gds-integration.rst @@ -31,3 +31,9 @@ Operations that support the use of GPUDirect Storage: - `to_csv` - `to_parquet` - `to_orc` + +Several parameters that can be used to tune the performance of GDS-enabled I/O are exposed through environment variables: + +- ``LIBCUDF_CUFILE_THREAD_COUNT``: Integral value, maximum number of parallel reads/writes per file (default 16); +- ``LIBCUDF_CUFILE_SLICE_SIZE``: Integral value, maximum size of each GDS read/write, in bytes (default 4MB). + Larger I/O operations are split into multiple calls. \ No newline at end of file