A rename keeps the listing's walk instead of throwing it away. bump_names now marks the rendered text stale (invalidate_text) and ListingModel re-renders a 500-head block at a time on demand, snapped out to whole address groups; a refetch that comes back with a different head sequence sets stale_structure so Program.listing() rebuilds. lg_rename 10055 -> 742.

Result: {"status":"keep","total_ms":25563.7,"lg_boot_ms":732.6,"lg_decomp_ms":2714,"lg_graph_ms":919.3,"lg_hex_ms":566.8,"lg_index_ms":71.4,"lg_listing_cold_ms":441.4,"lg_listing_warm_ms":411.7,"lg_nav_ms":6708,"lg_palette_ms":4.8,"lg_rename_ms":741.5,"lg_render_ms":227.7,"lg_search_ms":3314.1,"lg_split_ms":2596.9,"pure_graph_ms":213.6,"sm_boot_ms":422.9,"sm_decomp_ms":1284,"sm_graph_ms":789.5,"sm_hex_ms":468.1,"sm_index_ms":2.6,"sm_listing_cold_ms":258.7,"sm_listing_warm_ms":257.3,"sm_nav_ms":306.5,"sm_palette_ms":0.3,"sm_rename_ms":388.2,"sm_render_ms":256,"sm_search_ms":105.1,"sm_split_ms":1360.5,"fails":0}

1 files changed, 1 insertions, 0 deletions

diff --git a/.auto/log.jsonl b/.auto/log.jsonl
index 68e1473..951b62f 100644
--- a/.auto/log.jsonl
+++ b/.auto/log.jsonl
@@ -35,3 +35,4 @@
 {"run":29,"commit":"7ea3ca1","metric":33502.3,"metrics":{"lg_boot_ms":772.2,"lg_decomp_ms":2546.9,"lg_graph_ms":903.4,"lg_hex_ms":434.1,"lg_index_ms":97.7,"lg_listing_cold_ms":420.2,"lg_listing_warm_ms":397.4,"lg_nav_ms":6501.1,"lg_palette_ms":4.9,"lg_render_ms":212.4,"lg_search_ms":760.4,"lg_split_ms":10189.2,"pure_graph_ms":212.3,"sm_boot_ms":443.8,"sm_decomp_ms":1275.3,"sm_graph_ms":720.5,"sm_hex_ms":451,"sm_index_ms":2.5,"sm_listing_cold_ms":263.3,"sm_listing_warm_ms":264.7,"sm_nav_ms":302.8,"sm_palette_ms":0.3,"sm_render_ms":248.4,"sm_search_ms":43.9,"sm_split_ms":6033.6,"fails":0},"status":"keep","description":"RE-BASELINE (v6 bench). The split view ('s') was not covered at all, and it turns out to be the most expensive thing in the app: 16.2s of a 33.5s session (lg_split 10189 + sm_split 6034), or 500ms per function on echo and 850ms on bash, just to open it.","timestamp":1786070710925,"segment":5,"confidence":null,"asi":{"hypothesis":"the bench covers listing, decomp, graph, hex, search, nav and boot -- but not the split view, and an earlier aside measured decomp_map at 280ms per function","finding":"split is 48% of the whole benchmarked session once measured. 12 echo functions take 6.0s to open side by side; 12 bash functions take 10.2s.","why_it_was_missed":"the phase list was written from the README's headline features and 's' was not one of them. Same class of gap as v2 (graph opens timed a cache hit): if a feature is not in the bench, its cost is invisible however carefully you profile the ones that are.","cause_already_diagnosed":"server/patch_server.py decomp_map sweeps EVERY COLUMN of every pseudocode line, allocating three ctree_item_t SWIG objects per column and calling item.dstr() (which formats a whole 'EA: description' string) each time. Three separate wastes: the allocations, sweeping len(sl.line) which is the TAGGED length (124 columns for a 23-column line), and re-formatting for columns that report the same ctree item.","fix_ready":".auto/wip-decompmap.patch -- verified byte-identical over 165 functions across echo/ls_ttl/bash, 8.9-9.8x faster with Hex-Rays warm for both sides (bash's 25 largest: 67.4s -> 6.8s of sweeping)","next_action_hint":"apply it"}}
 {"run":30,"commit":"da1dfe8","metric":19834.8,"metrics":{"lg_boot_ms":676.9,"lg_decomp_ms":2698.8,"lg_graph_ms":892.1,"lg_hex_ms":440.4,"lg_index_ms":93.6,"lg_listing_cold_ms":438.5,"lg_listing_warm_ms":420.8,"lg_nav_ms":6646.7,"lg_palette_ms":4.7,"lg_render_ms":215.1,"lg_search_ms":767,"lg_split_ms":1327.6,"pure_graph_ms":213.6,"sm_boot_ms":468,"sm_decomp_ms":1317.1,"sm_graph_ms":730.7,"sm_hex_ms":483.2,"sm_index_ms":2.6,"sm_listing_cold_ms":266.1,"sm_listing_warm_ms":268.1,"sm_nav_ms":288.6,"sm_palette_ms":0.3,"sm_render_ms":253,"sm_search_ms":47.1,"sm_split_ms":874.2,"fails":0},"status":"keep","description":"decomp_map: stop sweeping every column three times over. It allocated three ctree_item_t SWIG objects PER COLUMN, swept the tagged line length (124 columns for a 23-column line), and called dstr() — which formats a whole 'EA: description' string — for every column even though consecutive columns report the same ctree item. Now: one item, no head/tail, visible columns only, and dstr() only when the item's obj_id changes.","timestamp":1786070905591,"segment":5,"confidence":null,"asi":{"gains":"total 33502 -> 19835 (-40.8%); lg_split 10189 -> 1328 (-87%); sm_split 6034 -> 874 (-86%)","work_unchanged_proof":"split_mapped_lines is 985 (echo) and 2069 (bash) BEFORE and AFTER -- the same per-line instruction sets are produced, from the same number of lines","equivalence":"/tmp/dmapeq2.py calls the shipped tool and a copy of the pre-change implementation for the same functions and compares the whole payload: 0 real mismatches over 165 functions on echo/ls_ttl/bash. (Two apparent ones were my reference's placeholder error string for functions Hex-Rays refuses.) With Hex-Rays warm for both sides the sweep is 8.9-9.8x faster; bash's 25 largest went 67.4s -> 6.8s.","the_three_wastes":["three ctree_item_t SWIG allocations per COLUMN -- one per call is enough, and head/tail are filled but never read, so pass None","range(len(sl.line)) is the TAGGED length: sl.line still carries IDA's colour tags, so a 23-column line was swept 124 times. tag_remove's length is the real bound.","item.dstr() formats a description string for every column; consecutive columns are nearly always the same ctree item. Comparing item.it.obj_id first collapses that to one format per item -- and the result is deduped by `seen` anyway, so skipping a repeat cannot change it."],"lesson_repeated":"this is the third time a cost was invisible because the benchmark did not exercise the feature (graph opens in v2, the non-scenario suites in v5, split view here). Coverage of the FEATURE matters more than precision on the ones already covered.","next_action_hint":"budget now: lg_nav 6647 (34%), decomp 4016, split 2202, graph 1623, listing 1394, boot 1145, hex 924, search 814, render 468. Split is still 2.2s for 24 functions -- what is left there is ida_hexrays.decompile inside decomp_map, which duplicates the decompile the view already did."}}
 {"type":"config","name":"ida-tui performance (v7 bench: rename covered too)","metricName":"total_ms","metricUnit":"ms","bestDirection":"lower"}
+{"run":31,"commit":"7b8c37a","metric":33242.6,"metrics":{"lg_boot_ms":710.8,"lg_decomp_ms":2401.2,"lg_graph_ms":898.1,"lg_hex_ms":448.7,"lg_index_ms":72.1,"lg_listing_cold_ms":439.3,"lg_listing_warm_ms":426.8,"lg_nav_ms":7060.2,"lg_palette_ms":4.8,"lg_rename_ms":10055,"lg_render_ms":220.2,"lg_search_ms":774.6,"lg_split_ms":3539.8,"pure_graph_ms":215.1,"sm_boot_ms":429.1,"sm_decomp_ms":1244.1,"sm_graph_ms":744.3,"sm_hex_ms":444.2,"sm_index_ms":2.5,"sm_listing_cold_ms":269.8,"sm_listing_warm_ms":263.3,"sm_nav_ms":282.9,"sm_palette_ms":0.3,"sm_rename_ms":638.3,"sm_render_ms":255.6,"sm_search_ms":44.2,"sm_split_ms":1357.4,"fails":0},"status":"keep","description":"RE-BASELINE (v7 bench). Rename — the commonest operation in reverse engineering — was not covered, and it costs 10.1s for SIX renames on bash (1.7s each) because bump_names discards the segment's ListingModel and the reload re-walks it from the start. lg_split also rose to 3540ms: the split phase now runs after renames have thrown the listing away.","timestamp":1786073435987,"segment":6,"confidence":null,"asi":{"hypothesis":"keep probing unbenched features -- the last two probes each found a 10x","finding":"rename costs 1.7s per rename on bash (10.1s for six) and 106ms on echo. Program.bump_names() clears _listings, so the reload builds an empty ListingModel and ensure_ea walks the segment from its start to find the row the cursor was already on.","the_irony":"idatui/edit_ctl.py already documents that a rename cannot move a row: 'a rename or comment doesn't change how many rows anything takes' -- it restores the cursor by INDEX afterwards. It just throws away the walk that gives the index meaning.","fix_ready_and_verified":".auto/wip-renamekeep.patch. ListingModel.invalidate_text() keeps the walk and marks the rendered text stale; _ensure_text re-renders a 500-head block at a time, snapped out to whole ADDRESS groups (a function start emits three banner rows at the same ea, so an unsnapped block boundary refetches the group and never lines up). If a refetch does come back with a different head sequence it sets stale_structure and Program.listing() rebuilds, so a mis-routed structural edit degrades to today's behaviour instead of showing stale names.","measured":"bash, cursor at row 220036 of 228659: viewport back in 10.3ms instead of 6320ms (593x). A FULL re-read of every row is break-even with a rebuild (6.8s vs 6.9s), which is the right shape -- refreshing N heads costs what loading N heads costs.","equivalence":"/tmp/renameeq.py renames a function, snapshots every row (ea, kind, text, name) from the kept model, then rebuilds from scratch and compares: 0 mismatches over 5952 rows (echo), 28807 (ls_ttl) and 228659 (bash), three renames each.","one_open_question":"one full-suite run showed a follow_xrefs failure with the patch in; it passed 10/10 in isolation afterwards and 6/7 full runs green vs 6/6 without. Watch it.","next_action_hint":"apply the patch"}}