hydra-queue-runner: More stats

Dependencies

• [2] HUUZFPPK Fix race between the queue monitor and the builder threads
• [3] PLOZBRTR Add command ‘hydra-queue-runner --status’ to show current status
• [4] OCZ4LSGG Automatically retry aborted builds
• [5] GS4BE6TB Asynchronously compress build logs
• [6] RYTQLATY Keep track of failed paths in the Hydra database
• [7] NIXRSHRK Fix finishing steps that are not top-level of any build
• [8] 5AIYUMTB Basic remote building
• [9] ENXUSMSV Make concurrency more robust
• [10] YZAI5GQU Implement a database connection pool
• [11] 24BMQDZA Start of single-process hydra-queue-runner
• [*] PQFOMNTL hydra-queue-runner: More stats
• [*] QJRDO2B4 Simplify retry handling

Change contents

• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 251
  [13.187]

  [13.187]
  + counter totalStepTime{0}; // total time for steps, including closure copying

  + counter totalStepBuildTime{0}; // total build time for steps
• replacement in src/hydra-queue-runner/hydra-queue-runner.cc at line 1045
  [4.4098]→[4.7680:7770](∅→∅),[4.7680]→[4.7680:7770](∅→∅)
  − printMsg(lvlInfo, format("cancelling build step ‘%1%’") % step->drvPath);
  [4.4098]

  [4.4099]
  + printMsg(lvlInfo, format("maybe cancelling build step ‘%1%’") % step->drvPath);
• replacement in src/hydra-queue-runner/hydra-queue-runner.cc at line 1064
  [4.141]→[4.13268:13300](∅→∅),[4.13268]→[4.13268:13300](∅→∅)
  − result.startTime = time(0);
  [4.141]

  [4.142]
  + time_t stepStartTime = result.startTime = time(0);
• replacement in src/hydra-queue-runner/hydra-queue-runner.cc at line 1096
  [4.16048]→[4.1476:1529](∅→∅)
  − if (!result.stopTime) result.stopTime = time(0);
  [4.16048]

  [4.1096]
  + time_t stepStopTime = time(0);

  + if (!result.stopTime) result.stopTime = stepStopTime;
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1157
  [2.4336]→[2.4336:4371](∅→∅)
  − nrStepsDone++;
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1227
  [2.6619]→[2.6619:6658](∅→∅)
  − nrStepsDone++;
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1302
  [4.9570]

  [14.2182]
  + nrStepsDone++;

  + totalStepTime += stepStopTime - stepStartTime;

  + totalStepBuildTime += result.stopTime - result.startTime;

  +
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1452
  [3.1458]

  [3.1458]
  + root.attr("totalStepTime", totalStepTime);

  + root.attr("totalStepBuildTime", totalStepBuildTime);

  + if (nrStepsDone) {

  + root.attr("avgStepTime"); out << (float) totalStepTime / nrStepsDone;

  + root.attr("avgStepBuildTime"); out << (float) totalStepBuildTime / nrStepsDone;

  + }