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f48fa542fc117d27396133063a375a7cea7b2d77
Adds new columns to the "Page spans" table named "large [B]" and
"[spans]", which shows how much memory is allocated in spans of given
size. Excludes spans used by small pools.
Useful in determining what is the size of large allocations which
consume the memory.
Example output:
Page spans:
index size [B] free [B] large [B] [spans]
0 4096 4096 4096 1
1 8192 32768 0 0
2 16384 16384 0 0
3 32768 98304 2785280 85
4 65536 65536 1900544 29
5 131072 524288 471597056 3598
...
31 8796093022208 0 0 0
Large allocations: 484675584 [B]
Message-Id: <1548956406-7601-1-git-send-email-tgrabiec@scylladb.com>
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Scylla
Quick-start
$ git submodule update --init --recursive
$ sudo ./install-dependencies.sh
$ ./configure.py --mode=release
$ ninja-build -j4 # Assuming 4 system threads.
$ ./build/release/scylla
$ # Rejoice!
Please see HACKING.md for detailed information on building and developing Scylla. Note: GCC >= 8.1.1 is require to compile Scylla.
Running Scylla
- Run Scylla
./build/release/scylla
- run Scylla with one CPU and ./tmp as data directory
./build/release/scylla --datadir tmp --commitlog-directory tmp --smp 1
- For more run options:
./build/release/scylla --help
Building Fedora RPM
As a pre-requisite, you need to install Mock on your machine:
# Install mock:
sudo yum install mock
# Add user to the "mock" group:
usermod -a -G mock $USER && newgrp mock
Then, to build an RPM, run:
./dist/redhat/build_rpm.sh
The built RPM is stored in /var/lib/mock/<configuration>/result directory.
For example, on Fedora 21 mock reports the following:
INFO: Done(scylla-server-0.00-1.fc21.src.rpm) Config(default) 20 minutes 7 seconds
INFO: Results and/or logs in: /var/lib/mock/fedora-21-x86_64/result
Building Fedora-based Docker image
Build a Docker image with:
cd dist/docker
docker build -t <image-name> .
Run the image with:
docker run -p $(hostname -i):9042:9042 -i -t <image name>
Contributing to Scylla
Description
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