const b = require('benny') const { writeTest } = require('./streams.common') // When writing line-by-line, GDAL will buffer // and delay the compression until the final flush (or if it runs out of memory) // When writing block-by-block, it will compress each block as it is received // In the particular case of gdal-async the line-by-line mode allows for better use of the CPU L1 cache // as all of the compression will happen in a single thread // The performance of the zero-copy mode is in fact higher with less threads (UV_THREADPOOL_SIZE=1) // This can't be solved unless gdal-async implements its own scheduling and multi-threading on top of libuv, // https://github.com/mmomtchev/node-gdal-async/issues/2 module.exports = b.suite( 'RasterWriteStream w/Compression', b.add('RasterWriteStream w/ block consolidation w/ big chunks', async () => writeTest(801, 601, 1803, 2, true, true)), b.add('RasterWriteStream w/ block consolidation w/ small chunks', async () => writeTest(801, 601, 267, 2, true, true)), b.add('RasterWriteStream w/ zero-copy', async () => writeTest(801, 601, 1602, 2, true, true)), b.add('RasterWriteStream in line mode w/ big chunks', async () => writeTest(801, 601, 1803, 2, false, true)), b.add('RasterWriteStream in line mode w/ small chunks', async () => writeTest(801, 601, 267, 2, false, true)), b.cycle(), b.complete() )