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@ -82,6 +82,19 @@ impl DatabaseEngine for Arc<Engine> {
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// TODO?
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// TODO?
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Ok(())
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Ok(())
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}
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}
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fn memory_usage(&self) -> Result<String> {
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let stats = rocksdb::perf::get_memory_usage_stats(Some(&[&self.rocks]), None)?;
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Ok(format!("Approximate memory usage of all the mem-tables: {:.3} MB\n\
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Approximate memory usage of un-flushed mem-tables: {:.3} MB\n\
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Approximate memory usage of all the table readers: {:.3} MB\n\
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Approximate memory usage by cache: {:.3} MB",
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stats.mem_table_total as f64 / 1024.0 / 1024.0,
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stats.mem_table_unflushed as f64 / 1024.0 / 1024.0,
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stats.mem_table_readers_total as f64 / 1024.0 / 1024.0,
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stats.cache_total as f64 / 1024.0 / 1024.0
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))
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}
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}
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}
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impl RocksDbEngineTree<'_> {
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impl RocksDbEngineTree<'_> {
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