diff options
Diffstat (limited to 'src/tarballer.rs')
| -rw-r--r-- | src/tarballer.rs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/tarballer.rs b/src/tarballer.rs index 9ff1bd2..fa6ab2c 100644 --- a/src/tarballer.rs +++ b/src/tarballer.rs @@ -47,9 +47,11 @@ impl Tarballer { // Prepare the `.tar.gz` file. let gz = GzEncoder::new(create_new_file(tar_gz)?, flate2::Compression::best()); - // Prepare the `.tar.xz` file. + // Prepare the `.tar.xz` file. Note that preset 6 takes about 173MB of memory + // per thread, so we limit the number of threads to not blow out 32-bit hosts. + // (We could be more precise with `MtStreamBuilder::memusage()` if desired.) let stream = xz2::stream::MtStreamBuilder::new() - .threads(num_cpus::get() as u32) + .threads(Ord::min(num_cpus::get(), 8) as u32) .preset(6) .encoder()?; let xz = XzEncoder::new_stream(create_new_file(tar_xz)?, stream); |