{"header":{"message":"elpe-sched: L3-cache-aware core packing (sysfs, zero C dep)","description":null,"timestamp":"2026-08-05T13:39:44.443324725Z","authors":[{}]},"hash":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC","authors":[{"login":"pmeunier","key":"AAAAC3NzaC1lZDI1NTE5AAAAILagOJFgwaMNhBWQINinKOXmqS4Gh5NgxgriXwdOoINJ"}],"deps":{"hashes":[["5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC","elpe-sched: L3-cache-aware core packing (sysfs, zero C dep)"],["AA",null],["AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC","backend: extract elpe-sched crate (NUMA-aware CPU placement); container/extract ELF-patch idempotence, arch-aware deb mirror, server error mapping"],["FUJZ2MGRHBZB4T2REPRUNMQCHUO2T5M4BAUD57N3X5PKW7PLFW5QC","elpe-sched: CapPolicy becomes a sum type (Uncapped | Fixed(n) | Adaptive{yield_at_pct}) with PSI back-pressure. ELPE_DEFAULT_CORES gains psi:/pressure:: an undeclared action waits (polling /proc/pressure/cpu 'some avg10') while CPU pressure >= threshold, so a desktop-cum-CI-runner yields to interactive use and refills when idle. Fixed(n) unchanged, Uncapped still the non-breaking default. Pure tests: parse grammar, adaptive slice (quarter machine), PSI parse, resolve declared-wins"],["KNTDFRHZJSR5SPTPUATZLZLYVPAMI35ME43P6V2TELVIQBH7IWKQC","cap policy travels frontend->backend over gRPC. New SetCapPolicy RPC + CapPolicy{CapMode mode, uint32 value} proto message; backend installs a process-global policy override (elpe_sched::set_default_policy) that container.rs reads via default_policy() at both acquire sites, taking precedence over ELPE_DEFAULT_CORES. OCaml gains a cap_policy sum type (Uncapped|Fixed n|Adaptive pct), elpe build -cores SPEC (N or psi:N) parses+pushes it before building; absent flag pushes nothing (non-breaking). Rust+OCaml green"]],"deps":["AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC"],"known":["FUJZ2MGRHBZB4T2REPRUNMQCHUO2T5M4BAUD57N3X5PKW7PLFW5QC","KNTDFRHZJSR5SPTPUATZLZLYVPAMI35ME43P6V2TELVIQBH7IWKQC"]},"hunks":[{"Replacement":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":6,"ins":{"up_context":[{"change":2,"pos":220}],"down_context":[{"change":2,"pos":384}],"flag":"BLOCK","start":0,"end":299,"inode":{"change":2,"pos":42}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":220},"to":{"change":2,"start":220,"end":384},"introduced_by":2}],"inode":{"change":2,"pos":42}},"ins_contents":[{"Add":{"text":"//! machine's NUMA *and* L3-cache layout from `/sys` and hand disjoint sets of","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:80"}},{"Add":{"text":"//! logical CPUs to concurrent actions, reclaiming them on drop. Placement","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:157"}},{"Add":{"text":"//! prefers, in decreasing locality, a single shared L3 cache, then a single","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:236"}},{"Add":{"text":"//! NUMA node, then a spill. Pure bookkeeping; the blocking","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:298"}}],"del_contents":[{"Del":{"text":"//! machine's NUMA layout from `/sys` and hand disjoint sets of logical CPUs to","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:301"}},{"Del":{"text":"//! concurrent actions, reclaiming them on drop. Pure bookkeeping; the blocking","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:383"}}]}},{"Replacement":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":22,"ins":{"up_context":[{"change":2,"pos":1233}],"down_context":[{"change":2,"pos":1443}],"flag":"BLOCK","start":300,"end":775,"inode":{"change":2,"pos":42}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":1233},"to":{"change":2,"start":1233,"end":1443},"introduced_by":2}],"inode":{"change":2,"pos":42}},"ins_contents":[{"Add":{"text":"//! standard C library for topology, but both the NUMA layout and the L3-cache","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:378"}},{"Add":{"text":"//! grouping we need are already exposed in `/sys`, so we read them straight from","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:460"}},{"Add":{"text":"//! there and keep the C-dep footprint at zero — which is what lets this crate","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:541"}},{"Add":{"text":"//! stay std-only and compile everywhere (the cgroup layer is a no-op off Linux).","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:623"}},{"Add":{"text":"//! `hwloc2` stays the escape hatch only if we ever need richer topology than","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:701"}},{"Add":{"text":"//! sysfs exposes (hyperthread siblings, multi-level cache co-location).","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:774"}}],"del_contents":[{"Del":{"text":"//! standard C library for topology, but for a first cut we read the little we","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:1311"}},{"Del":{"text":"//! need straight from `/sys`, keeping the C-dep footprint at zero. Swap in","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:1387"}},{"Del":{"text":"//! `hwloc2` later if L3-cache-aware packing pays off.","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:1442"}}]}},{"Replacement":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":29,"ins":{"up_context":[{"change":2,"pos":1444}],"down_context":[{"change":2,"pos":1487}],"flag":"BLOCK","start":776,"end":829,"inode":{"change":2,"pos":42}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":1444},"to":{"change":2,"start":1444,"end":1487},"introduced_by":2}],"inode":{"change":2,"pos":42}},"ins_contents":[{"Add":{"text":"use std::collections::{BTreeMap, BTreeSet, HashMap};","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:828"}}],"del_contents":[{"Del":{"text":"use std::collections::{BTreeSet, HashMap};","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:1486"}}]}},{"Replacement":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":67,"ins":{"up_context":[{"change":2,"pos":2700}],"down_context":[{"change":2,"pos":2769}],"flag":"BLOCK","start":830,"end":938,"inode":{"change":2,"pos":42}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":2700},"to":{"change":2,"start":2700,"end":2769},"introduced_by":2}],"inode":{"change":2,"pos":42}},"ins_contents":[{"Add":{"text":"/// Machine CPU topology: the online logical CPUs of each NUMA node, plus the L3","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:910"}},{"Add":{"text":"/// cache each CPU shares.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:937"}}],"del_contents":[{"Del":{"text":"/// Machine CPU topology: the online logical CPUs of each NUMA node.","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:2768"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":73,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":2988}],"down_context":[{"change":2,"pos":2988}],"flag":"BLOCK","start":939,"end":1370,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":" /// The L3 cache domain id of each logical CPU: two CPUs share a domain iff","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1018"}},{"Add":{"text":" /// they share an L3 cache. The id is the smallest CPU id in the shared set (a","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1101"}},{"Add":{"text":" /// stable canonical name). Empty when `/sys` exposes no L3 topology, in which","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1184"}},{"Add":{"text":" /// case placement falls back to NUMA-only packing. An L3 cache never spans a","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1266"}},{"Add":{"text":" /// NUMA node, so a domain is always nested within one node.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1331"}},{"Add":{"text":" pub l3_of: HashMap,","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1369"}}]}},{"Replacement":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":124,"ins":{"up_context":[{"change":2,"pos":4765}],"down_context":[{"change":2,"pos":4792}],"flag":"BLOCK","start":1371,"end":1549,"inode":{"change":2,"pos":42}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":4765},"to":{"change":2,"start":4765,"end":4792},"introduced_by":2}],"inode":{"change":2,"pos":42}},"ins_contents":[{"Add":{"text":" let all_cpus: Vec = nodes.iter().flat_map(|(_, c)| c.iter().copied()).collect();","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1466"}},{"Add":{"text":" let l3_of = read_l3_domains(&all_cpus);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1514"}},{"Add":{"text":" Topology { nodes, l3_of }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1548"}}],"del_contents":[{"Del":{"text":" Topology { nodes }","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:4791"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":132,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":4938}],"down_context":[{"change":2,"pos":4938}],"flag":"BLOCK","start":1550,"end":2242,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1555"}},{"Add":{"text":"}","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1557"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1558"}},{"Add":{"text":"/// Read the L3 cache domain of each of `cpus` from sysfs. Two CPUs land in the","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1638"}},{"Add":{"text":"/// same domain iff they share an L3 cache; the domain id is the smallest CPU id","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1719"}},{"Add":{"text":"/// in that shared set (a stable canonical name, so every CPU in one L3 agrees on","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1801"}},{"Add":{"text":"/// it). CPUs whose L3 topology sysfs doesn't expose are simply left out — an","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1881"}},{"Add":{"text":"/// empty result makes the allocator fall back to NUMA-only packing.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:1950"}},{"Add":{"text":"fn read_l3_domains(cpus: &[usize]) -> HashMap {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2012"}},{"Add":{"text":" let mut l3_of = HashMap::new();","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2048"}},{"Add":{"text":" for &cpu in cpus {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2071"}},{"Add":{"text":" if let Some(shared) = l3_shared_cpus(cpu) {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2123"}},{"Add":{"text":" if let Some(&dom) = shared.iter().min() {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2177"}},{"Add":{"text":" l3_of.insert(cpu, dom);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2217"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2231"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2241"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":149,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":4944}],"down_context":[{"change":2,"pos":4944}],"flag":"BLOCK","start":2243,"end":2253,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":" l3_of","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2252"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":152,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":4947}],"down_context":[{"change":2,"pos":4947}],"flag":"BLOCK","start":2254,"end":3125,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":"/// The `shared_cpu_list` of CPU `cpu`'s level-3 cache, read from","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2319"}},{"Add":{"text":"/// `/sys/devices/system/cpu/cpu/cache/index*/`. `None` when no such cache is","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2400"}},{"Add":{"text":"/// described (no cache dir, older kernel, or a CPU with no L3). Each file is read","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2483"}},{"Add":{"text":"/// best-effort so a missing field in one index dir doesn't hide the others.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2560"}},{"Add":{"text":"fn l3_shared_cpus(cpu: usize) -> Option> {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2614"}},{"Add":{"text":" let base = format!(\"/sys/devices/system/cpu/cpu{cpu}/cache\");","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2680"}},{"Add":{"text":" for entry in std::fs::read_dir(&base).ok()?.flatten() {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2740"}},{"Add":{"text":" let dir = entry.path();","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2772"}},{"Add":{"text":" let level = std::fs::read_to_string(dir.join(\"level\"))","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2835"}},{"Add":{"text":" .ok()","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2853"}},{"Add":{"text":" .and_then(|s| s.trim().parse::().ok());","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2910"}},{"Add":{"text":" if level == Some(3) {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:2940"}},{"Add":{"text":" if let Ok(list) = std::fs::read_to_string(dir.join(\"shared_cpu_list\")) {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3025"}},{"Add":{"text":" return Some(parse_cpulist(list.trim()));","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3082"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3096"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3106"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3112"}},{"Add":{"text":" None","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3121"}},{"Add":{"text":"}","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3123"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3124"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":186,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":5394}],"down_context":[{"change":2,"pos":5394}],"flag":"BLOCK","start":3126,"end":3160,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":" l3_of: HashMap,","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3159"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":206,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":5971}],"down_context":[{"change":2,"pos":5971}],"flag":"BLOCK","start":3161,"end":3196,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":" l3_of: topo.l3_of,","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3195"}}]}},{"Replacement":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":254,"ins":{"up_context":[{"change":2,"pos":7271}],"down_context":[{"change":2,"pos":7500}],"flag":"BLOCK","start":3197,"end":3585,"inode":{"change":2,"pos":42}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":7271},"to":{"change":2,"start":7271,"end":7500},"introduced_by":2}],"inode":{"change":2,"pos":42}},"ins_contents":[{"Add":{"text":" /// Remove and return `want` free CPUs, packing for locality in decreasing","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3275"}},{"Add":{"text":" /// order of preference: a single shared L3 cache, then a single NUMA node,","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3355"}},{"Add":{"text":" /// then a spill across the fullest nodes. Because an L3 domain is nested in a","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3438"}},{"Add":{"text":" /// NUMA node, an L3 hit is also a node hit; the node step only matters for","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3518"}},{"Add":{"text":" /// requests too big for any one L3 but still fitting a node.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3584"}}],"del_contents":[{"Del":{"text":" /// Remove and return `want` free CPUs, preferring a single NUMA node (the","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:7349"}},{"Del":{"text":" /// smallest one that still fits, to keep large nodes intact) and only","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:7424"}},{"Del":{"text":" /// spilling across nodes when no single node can satisfy the request.","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:7499"}}]}},{"Replacement":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":260,"ins":{"up_context":[{"change":2,"pos":7552}],"down_context":[{"change":2,"pos":7620}],"flag":"BLOCK","start":3586,"end":4910,"inode":{"change":2,"pos":42}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":7552},"to":{"change":2,"start":7552,"end":7620},"introduced_by":2}],"inode":{"change":2,"pos":42}},"ins_contents":[{"Add":{"text":" let chosen = best_fit(&self.free_by_l3(), want)","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3641"}},{"Add":{"text":" .or_else(|| best_fit(&self.free_by_node(), want))","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3703"}},{"Add":{"text":" .unwrap_or_else(|| {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3736"}},{"Add":{"text":" // Spill: fullest nodes first, to minimise the nodes touched.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3814"}},{"Add":{"text":" let mut per_node = self.free_by_node();","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3870"}},{"Add":{"text":" per_node.sort_by(|a, b| b.len().cmp(&a.len()));","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:3934"}},{"Add":{"text":" per_node.into_iter().flatten().take(want).collect()","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4002"}},{"Add":{"text":" });","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4018"}},{"Add":{"text":" for c in &chosen {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4045"}},{"Add":{"text":" self.free.remove(c);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4078"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4088"}},{"Add":{"text":" chosen","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4103"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4109"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4110"}},{"Add":{"text":" /// The free CPUs grouped by L3 cache domain, each group sorted ascending and","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4192"}},{"Add":{"text":" /// the groups ordered by domain id. Empty when no L3 topology is known, which","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4275"}},{"Add":{"text":" /// short-circuits the L3 step in [`pick`](State::pick).","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4336"}},{"Add":{"text":" fn free_by_l3(&self) -> Vec> {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4382"}},{"Add":{"text":" if self.l3_of.is_empty() {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4417"}},{"Add":{"text":" return Vec::new();","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4448"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4458"}},{"Add":{"text":" let mut groups: BTreeMap> = BTreeMap::new();","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4529"}},{"Add":{"text":" for c in &self.free {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4559"}},{"Add":{"text":" if let Some(&dom) = self.l3_of.get(c) {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4611"}},{"Add":{"text":" groups.entry(dom).or_default().push(*c);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4668"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4682"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4692"}},{"Add":{"text":" groups.into_values().collect()","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4731"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4737"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4738"}},{"Add":{"text":" /// The free CPUs grouped by NUMA node (node order preserved), each group","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4816"}},{"Add":{"text":" /// sorted ascending.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4842"}},{"Add":{"text":" fn free_by_node(&self) -> Vec> {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4890"}},{"Add":{"text":" self.nodes","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4909"}}],"del_contents":[{"Del":{"text":" let mut per_node: Vec> = self","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:7600"}},{"Del":{"text":" .nodes","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:7619"}}]}},{"Replacement":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":304,"ins":{"up_context":[{"change":2,"pos":7929}],"down_context":[{"change":2,"pos":8672}],"flag":"BLOCK","start":4911,"end":4934,"inode":{"change":2,"pos":42}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":7929},"to":{"change":2,"start":7929,"end":8672},"introduced_by":2}],"inode":{"change":2,"pos":42}},"ins_contents":[{"Add":{"text":" .collect()","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4933"}}],"del_contents":[{"Del":{"text":" .collect();","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:7952"}},{"Del":{"text":"","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:7953"}},{"Del":{"text":" // Best fit: the node with the fewest free CPUs that still covers `want`.","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8035"}},{"Del":{"text":" let single = per_node","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8065"}},{"Del":{"text":" .iter()","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8085"}},{"Del":{"text":" .enumerate()","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8110"}},{"Del":{"text":" .filter(|(_, f)| f.len() >= want)","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8156"}},{"Del":{"text":" .min_by_key(|(_, f)| f.len())","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8198"}},{"Del":{"text":" .map(|(i, _)| i);","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8228"}},{"Del":{"text":"","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8229"}},{"Del":{"text":" let chosen: Vec = if let Some(i) = single {","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8288"}},{"Del":{"text":" per_node[i].iter().take(want).copied().collect()","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8349"}},{"Del":{"text":" } else {","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8366"}},{"Del":{"text":" // Spill: fullest nodes first, to minimise the number of nodes touched.","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8450"}},{"Del":{"text":" per_node.sort_by(|a, b| b.len().cmp(&a.len()));","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8510"}},{"Del":{"text":" per_node.into_iter().flatten().take(want).collect()","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8574"}},{"Del":{"text":" };","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8585"}},{"Del":{"text":"","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8586"}},{"Del":{"text":" for c in &chosen {","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8613"}},{"Del":{"text":" self.free.remove(c);","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8646"}},{"Del":{"text":" }","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8656"}},{"Del":{"text":" chosen","pos":"AULXG4IEPL6RBH4A7SLHQXILHWWSWBJSSWDPOZXESKD7VBM3GOHQC:8671"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":306,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":8678}],"down_context":[{"change":2,"pos":8678}],"flag":"BLOCK","start":4935,"end":5489,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":"}","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4936"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:4937"}},{"Add":{"text":"/// Best fit over locality groups: pick the smallest group that still holds","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5013"}},{"Add":{"text":"/// `want` free CPUs and return its lowest `want` ids, keeping large groups","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5089"}},{"Add":{"text":"/// intact for larger requests. `None` when no single group fits. Ties break to","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5169"}},{"Add":{"text":"/// the earliest group, so callers order `groups` for determinism (by domain /","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5248"}},{"Add":{"text":"/// node id).","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5262"}},{"Add":{"text":"fn best_fit(groups: &[Vec], want: usize) -> Option> {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5334"}},{"Add":{"text":" groups","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5345"}},{"Add":{"text":" .iter()","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5361"}},{"Add":{"text":" .filter(|f| f.len() >= want)","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5398"}},{"Add":{"text":" .min_by_key(|f| f.len())","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5431"}},{"Add":{"text":" .map(|f| f.iter().take(want).copied().collect())","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5488"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":650,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":17800}],"down_context":[{"change":2,"pos":17800}],"flag":"BLOCK","start":5490,"end":5989,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":" l3_of: HashMap::new(),","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5524"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5534"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5540"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5541"}},{"Add":{"text":" /// One 8-CPU NUMA node split into two 4-CPU L3 domains (`{0..4}`, `{4..8}`) —","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5626"}},{"Add":{"text":" /// e.g. an AMD chiplet layout where one node holds two CCXs.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5692"}},{"Add":{"text":" fn topo_1node_2l3() -> Topology {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5730"}},{"Add":{"text":" let mut l3_of = HashMap::new();","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5770"}},{"Add":{"text":" for c in 0..4 {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5794"}},{"Add":{"text":" l3_of.insert(c, 0);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5826"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5836"}},{"Add":{"text":" for c in 4..8 {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5860"}},{"Add":{"text":" l3_of.insert(c, 4);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5892"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5902"}},{"Add":{"text":" Topology {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5921"}},{"Add":{"text":" nodes: vec![(0, (0..8).collect())],","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5969"}},{"Add":{"text":" l3_of,","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5988"}}]}},{"Edit":{"inode":{"change":2,"pos":42},"path":"elpe-sched/src/lib.rs","line":698,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":18839}],"down_context":[{"change":2,"pos":18839}],"flag":"BLOCK","start":5990,"end":7128,"inode":{"change":2,"pos":42}}},"contents":[{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5995"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:5996"}},{"Add":{"text":" #[test]","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6008"}},{"Add":{"text":" fn allocation_prefers_a_single_l3_domain() {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6057"}},{"Add":{"text":" let a = CoreAllocator::new(topo_1node_2l3());","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6111"}},{"Add":{"text":" assert_eq!(a.total(), 8);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6145"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6146"}},{"Add":{"text":" // A 3-core request packs inside one L3 domain (both domains hold 4 free","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6227"}},{"Add":{"text":" // CPUs; ties break to the lower domain id → cpus 0,1,2).","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6295"}},{"Add":{"text":" let x = a.allocate(3);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6326"}},{"Add":{"text":" assert_eq!(x.cpus, vec![0, 1, 2], \"3 cores must share one L3 domain\");","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6405"}},{"Add":{"text":" assert_eq!(x.mems, vec![0]);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6442"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6443"}},{"Add":{"text":" // The next 4-core request can't fit domain 0's one leftover CPU, so it","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6523"}},{"Add":{"text":" // lands wholly in domain 1 (cpus 4..8) — still one shared L3.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6596"}},{"Add":{"text":" let y = a.allocate(4);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6627"}},{"Add":{"text":" assert_eq!(y.cpus, vec![4, 5, 6, 7], \"must fall to the other L3 domain\");","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6709"}},{"Add":{"text":" }","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6715"}},{"Add":{"text":"","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6716"}},{"Add":{"text":" #[test]","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6728"}},{"Add":{"text":" fn falls_back_to_node_packing_when_request_exceeds_any_l3() {","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6794"}},{"Add":{"text":" let a = CoreAllocator::new(topo_1node_2l3());","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6848"}},{"Add":{"text":" // 5 cores fit in no single 4-CPU L3 domain, but do fit the 8-CPU node —","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:6931"}},{"Add":{"text":" // so we pack the node (spanning both L3s) rather than spilling.","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:7004"}},{"Add":{"text":" let big = a.allocate(5);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:7037"}},{"Add":{"text":" assert_eq!(big.cpus, vec![0, 1, 2, 3, 4]);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:7088"}},{"Add":{"text":" assert_eq!(big.mems, vec![0]);","pos":"5RNSYPCLNIGNH6MJS7IV2ZQ4WIRSLAEHXKKXJHIUGPIVQDIR3FBQC:7127"}}]}}],"owner":"pmeunier","repo":"elpe","token":"bsokRkpUrVktL+cadnLUrk3avB22PLNi9gpK4kxx0+M=","login":null}

…

Dependencies

Change contents

Review