enhance cgo future manager sharding with 32-core groups - #2
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Use a 256-slot register buffer and route future registration across `cpuNum/32` managers (minimum 1 shard) to reduce single-manager contention in the cancel/select loop. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
defaultRegisterBuffrom 1 to 256 for active future registrationactiveFutureManagerby CPU groups (numShards = cpuNum/32, min 1 shard) and route registrations round-robinTestConcurrentto aggregate active future counts across all shardsTest plan
sudo DOCKER_CONFIG=/tmp/docker-anon -E ./build/builder.sh /bin/bash -c \"set -euo pipefail; source scripts/setenv.sh; go test -tags test -run 'TestFutureWithSuccessCase|TestFutures|TestConcurrent' -v ./internal/util/cgo\"internal/util/cgo/manager_active.gointernal/util/cgo/futures.gointernal/util/cgo/futures_test.goorigin/masterand excludes serialFillPrimaryKeyrollback changes🤖 Generated with Claude Code