Files
agentic-pd-hybrid/scripts/sweep_e4_pressured.sh
Claude Code Agent 19612ff3a3 feat(experiments): parameterize TIME_SCALE in E4-pressured sweep
The third_party SWE-Bench trace uses real wall-clock timestamps
(5.44h span, p50 inter-turn 2.53s). With --time-scale 1 the sweep
mirrors the original timeline, taking 5.44h. TIME_SCALE env var
lets us compress (e.g. 10 → 33min, 60 → 5.5min) for tighter
iteration; defaults to 1 for realistic comparison.

Usage:
  TIME_SCALE=10 bash scripts/sweep_e4_pressured.sh
  TIME_SCALE=60 bash scripts/sweep_e4_pressured.sh
2026-05-13 14:22:13 +08:00

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#!/usr/bin/env bash
# E4-pressured — same as E4 but tuned to force admission rejections so the
# D→P snapshot fast-path actually fires.
#
# Key delta vs sweep_e4_kvc_v2_d_to_p_sync.sh:
# --kvcache-migration-reject-threshold 1 (was 3)
# After ONE rejection the policy migrates the session to a different
# D, which in turn triggers _invoke_kvcache_seeded_router → D→P sync.
# --decode-mem-fraction-static 0.4
# Plumbed through cli.py → topology.decode_extra_server_args →
# launcher. Shrinks per-decode KV pool, forcing admit_direct_append
# to reject more often.
#
# Hypotheses (same as docs/E4_PROTOCOL_ZH.md but in a stressed regime):
# H1' E4-pressured TTFT p99 ≤ E1 TTFT p99
# H2' D→P snapshot succeeds for ≥ 20% of reseed-triggering requests
# H3' D→P-pushed-then-cache-hit reduces re-prefill segment of reseed
# path TTFT measurably
set -euo pipefail
cd "$(dirname "$0")/.."
if [ -z "${CUDA_HOME:-}" ]; then
echo "ERROR: CUDA_HOME not set. Source scripts/setup_env.sh first." >&2
exit 1
fi
MODEL=${MODEL:-/mnt/models/Qwen/Qwen3-30B-A3B-Instruct-2507}
TRACE=${TRACE:-third_party/traces/qwen35-swebench-50sess.jsonl}
OUTPUT=${OUTPUT:-outputs/e4p_kvc_v2_d_to_p_sync_pressured_50sess}
IB_DEVICE=${IB_DEVICE:-mlx5_60}
LOAD_FLOOR_BONUS=${LOAD_FLOOR_BONUS:-200}
REJECT_THRESHOLD=${REJECT_THRESHOLD:-1}
MEM_FRACTION=${MEM_FRACTION:-0.5}
# time-scale: 1 = realistic 5.44h timeline for the SWE-Bench trace;
# 10 = compress to ~33 min; 60 = compress to ~5.5 min (stress test).
TIME_SCALE=${TIME_SCALE:-1}
if [ ! -f "$TRACE" ]; then
echo "ERROR: trace not found at $TRACE" >&2
exit 1
fi
mkdir -p "$OUTPUT"
LOG="$OUTPUT/sweep.log"
log() { echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" | tee -a "$LOG"; }
log "=== E4-pressured: KVC v2 + RDMA + load-floor K=$LOAD_FLOOR_BONUS + D→P sync + reject_threshold=$REJECT_THRESHOLD + mem_fraction=$MEM_FRACTION ==="
log "MODEL=$MODEL"
log "TRACE=$TRACE ($(wc -l < $TRACE) requests)"
log "OUTPUT=$OUTPUT"
label=e4p_kvc_v2_d_to_p_sync_run1
log "=== [E4p] $label starting ==="
uv run --no-sync python -m agentic_pd_hybrid.cli benchmark-live \
--trace "$TRACE" \
--output-root "$OUTPUT" \
--mechanism kvcache-centric \
--policy kv-aware \
--model-path "$MODEL" \
--prefill-workers 1 --decode-workers 3 \
--prefill-tp-size 1 --decode-tp-size 1 \
--prefill-gpu-ids 0 --decode-gpu-ids 1,2,3 \
--transfer-backend mooncake \
--force-rdma --ib-device "$IB_DEVICE" \
--gpu-budget 4 \
--time-scale "$TIME_SCALE" \
--session-sample-rate 1.0 \
--target-duration-s 100000 \
--concurrency-limit 32 \
--timeout-s 1800 \
--request-timeout-s 300 \
--kvcache-admission-mode worker \
--kvcache-seed-min-turn-id 1 \
--kvcache-seed-max-inflight-decode -1 \
--kvcache-prefill-backup-policy release-after-transfer \
--kvcache-prefill-priority-eviction \
--kvcache-migration-reject-threshold "$REJECT_THRESHOLD" \
--kvcache-direct-max-uncached-tokens 8192 \
--kvcache-load-floor-bonus "$LOAD_FLOOR_BONUS" \
--decode-mem-fraction-static "${DECODE_MEM_FRAC:-0.4}" \
--enable-d-to-p-sync 2>&1 | tee -a "$LOG"
run_dir=$(ls -td "$OUTPUT"/kvcache-centric-*/ 2>/dev/null | head -1)
log "=== [E4p] $label COMPLETED, artifacts at $run_dir ==="
if [ -f "$run_dir/request-metrics.jsonl.summary.json" ]; then
cp "$run_dir/request-metrics.jsonl.summary.json" "$OUTPUT/${label}_summary.json"
cp "$run_dir/request-metrics.jsonl" "$OUTPUT/${label}_metrics.jsonl"
log "=== summary saved to $OUTPUT/${label}_summary.json ==="
fi