From fe6571f64a0c51502de53e96bcbed282811d7f85 Mon Sep 17 00:00:00 2001
From: Uwe Schulzweida <uwe.schulzweida@mpimet.mpg.de>
Date: Mon, 13 Mar 2023 09:34:41 +0100
Subject: [PATCH] set chunkSizeMin to 256k
---
ChangeLog | 8 ++++++++
src/cdf_write.c | 6 +++---
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index d66301f86..6a04dd414 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2023-04-06 Uwe Schulzweida
+
+ * Version 2.2.1 released
+
+2023-03-13 Uwe Schulzweida
+
+ * set chunkSizeMin to 256k
+
2023-03-02 Uwe Schulzweida
* add async_worker support for NCZARR
diff --git a/src/cdf_write.c b/src/cdf_write.c
index e40b6226c..d0d112c6e 100644
--- a/src/cdf_write.c
+++ b/src/cdf_write.c
@@ -703,14 +703,14 @@ calc_chunksize(size_t chunkSizeLim, size_t size)
return chunkSize;
}
-static const size_t chunkSizeMax = 65536;
+static const size_t chunkSizeMin = 262144;
static const size_t chunkSizeLim = 1048576;
size_t
calc_chunksize_y(int chunkType, size_t gridsize, size_t xsize, size_t ysize)
{
if (chunkType == CDI_CHUNK_AUTO)
- return (gridsize <= chunkSizeMax) ? ysize : chunkSizeMax / xsize;
+ return (gridsize <= chunkSizeMin) ? ysize : chunkSizeMin / xsize;
else
return (chunkType == CDI_CHUNK_LINES) ? 1 : ysize;
}
@@ -719,7 +719,7 @@ size_t
calc_chunksize_x(int chunkType, int chunkSize, size_t xsize, bool yIsUndefined)
{
if (chunkType == CDI_CHUNK_AUTO && yIsUndefined)
- return (chunkSize > 0) ? (size_t) chunkSize : ((xsize <= chunkSizeMax) ? xsize : chunkSizeMax);
+ return (chunkSize > 0) ? (size_t) chunkSize : ((xsize <= chunkSizeMin) ? xsize : chunkSizeMin);
else
return calc_chunksize(chunkSizeLim, xsize);
}
--
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