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-rw-r--r--src/libutil/compression.cc7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libutil/compression.cc b/src/libutil/compression.cc
index aad6e9b5b..a36c4405f 100644
--- a/src/libutil/compression.cc
+++ b/src/libutil/compression.cc
@@ -193,9 +193,14 @@ struct XzSink : CompressionSink
{
lzma_mt mt_options = {};
mt_options.flags = 0;
- mt_options.timeout = 300;
+ mt_options.timeout = 300; // Using the same setting as the xz cmd line
mt_options.check = LZMA_CHECK_CRC64;
mt_options.threads = lzma_cputhreads();
+ mt_options.block_size = 0;
+ if (mt_options.threads == 0)
+ mt_options.threads = 1;
+ // FIXME: maybe use lzma_stream_encoder_mt_memusage() to control the
+ // number of threads.
lzma_ret ret = lzma_stream_encoder_mt(
&strm, &mt_options);
if (ret != LZMA_OK)