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Add warning on low memory limit

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This commit is contained in:
Marcus Holland-Moritz 2021-03-23 14:17:48 +01:00
parent c19c426968
commit 58b23cebe8
1 changed files with 9 additions and 0 deletions
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9
src/mkdwarfs.cpp
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@ -795,6 +795,15 @@ int mkdwarfs(int argc, char** argv) {
block_compressor schema_bc(schema_compression);
block_compressor metadata_bc(metadata_compression);
size_t min_memory_req = num_workers * (1 << cfg.block_size_bits);
if (mem_limit < min_memory_req && compression != "null") {
LOG_WARN << "low memory limit (" << size_with_unit(mem_limit) << "), need "
<< size_with_unit(min_memory_req) << " to efficiently compress "
<< size_with_unit(1 << cfg.block_size_bits) << " blocks with "
<< num_workers << " threads";
}
filesystem_writer fsw(ofs, lgr, wg_compress, prog, bc, schema_bc, metadata_bc,
mem_limit);