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create-relocatable-package.py currently (refs #4194) builds a compressed tar file, but does so using a painfully slow Python implementation of gzip, which is a problem considering the huge size (around 2 gigabytes) of Scylla's executable. On my machine, running it for a release build of Scylla takes a whopping 6 minutes. Just replacing the Python compression with a pipe to an external "gzip" process speeds up the run to just 2 minutes. But gzip is still not optimal, using only one thread even when on a many-core machine. If we switch to "pigz", a parallel implementation of "gzip", all cores are used and on my machine the compression speeds up to just 23 seconds - that's 15 times faster than before this patch. So this patch has create-relocatable-package.py use an external pigz process. "pigz" is now required on the build system (if you want to create packages), so is added to install-dependencies.sh. [avi: update toolchain] Signed-off-by: Nadav Har'El <nyh@scylladb.com> Message-Id: <20190212090333.3970-1-nyh@scylladb.com>
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docker.io/scylladb/scylla-toolchain:fedora-29-20190212 |