use std::{ fmt, iter::FromIterator, sync::Arc, }; use ra_syntax::{AstNode, TreeArc, SourceFile}; use ra_db::{ ParseQuery, FileTextQuery, SourceRootId, salsa::{Database, debug::{DebugQueryTable, TableEntry}}, }; use crate::{ FileId, db::RootDatabase, symbol_index::{SymbolIndex, LibrarySymbolsQuery}, }; pub(crate) fn syntax_tree_stats(db: &RootDatabase) -> SyntaxTreeStats { db.query(ParseQuery).entries::() } pub(crate) fn status(db: &RootDatabase) -> String { let files_stats = db.query(FileTextQuery).entries::(); let syntax_tree_stats = syntax_tree_stats(db); let symbols_stats = db.query(LibrarySymbolsQuery).entries::(); format!( "{}\n{}\n{}\n\n\nmemory:\n{}\ngc {:?} seconds ago", files_stats, symbols_stats, syntax_tree_stats, MemoryStats::current(), db.last_gc.elapsed().as_secs(), ) } #[derive(Default)] struct FilesStats { total: usize, size: Bytes, } impl fmt::Display for FilesStats { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { write!(fmt, "{} ({}) files", self.total, self.size) } } impl FromIterator>> for FilesStats { fn from_iter(iter: T) -> FilesStats where T: IntoIterator>>, { let mut res = FilesStats::default(); for entry in iter { res.total += 1; res.size += entry.value.unwrap().len(); } res } } #[derive(Default)] pub(crate) struct SyntaxTreeStats { total: usize, pub(crate) retained: usize, retained_size: Bytes, } impl fmt::Display for SyntaxTreeStats { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { write!(fmt, "{} trees, {} ({}) retained", self.total, self.retained, self.retained_size,) } } impl FromIterator>> for SyntaxTreeStats { fn from_iter(iter: T) -> SyntaxTreeStats where T: IntoIterator>>, { let mut res = SyntaxTreeStats::default(); for entry in iter { res.total += 1; if let Some(value) = entry.value { res.retained += 1; res.retained_size += value.syntax().memory_size_of_subtree(); } } res } } #[derive(Default)] struct LibrarySymbolsStats { total: usize, size: Bytes, } impl fmt::Display for LibrarySymbolsStats { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { write!(fmt, "{} ({}) symbols", self.total, self.size,) } } impl FromIterator>> for LibrarySymbolsStats { fn from_iter(iter: T) -> LibrarySymbolsStats where T: IntoIterator>>, { let mut res = LibrarySymbolsStats::default(); for entry in iter { let value = entry.value.unwrap(); res.total += value.len(); res.size += value.memory_size(); } res } } struct MemoryStats { allocated: Bytes, resident: Bytes, } impl MemoryStats { #[cfg(feature = "jemalloc")] fn current() -> MemoryStats { jemalloc_ctl::epoch().unwrap(); MemoryStats { allocated: Bytes(jemalloc_ctl::stats::allocated().unwrap()), resident: Bytes(jemalloc_ctl::stats::resident().unwrap()), } } #[cfg(not(feature = "jemalloc"))] fn current() -> MemoryStats { MemoryStats { allocated: Bytes(0), resident: Bytes(0) } } } impl fmt::Display for MemoryStats { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { write!(fmt, "{} allocated {} resident", self.allocated, self.resident,) } } #[derive(Default)] struct Bytes(usize); impl fmt::Display for Bytes { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { let bytes = self.0; if bytes < 4096 { return write!(f, "{} bytes", bytes); } let kb = bytes / 1024; if kb < 4096 { return write!(f, "{}kb", kb); } let mb = kb / 1024; write!(f, "{}mb", mb) } } impl std::ops::AddAssign for Bytes { fn add_assign(&mut self, x: usize) { self.0 += x; } }