Limits

Current limits of the beta:

• Runner: Linux x86-64 only: Ubuntu 24.04, 4 vCPUs, 8 GB memory, 16 GB of disk writes.
• Recorded mode: a recorded machine runs on one core. It is about 1.1x to 1.6x slower than one native core for typical builds and tests.
• Unrecorded mode: about 1.0x to 1.4x of native speed for builds.
• Shards:
  • up to 8 per job;
  • no network inside shards;
  • one split per job;
  • shard output appears when the step ends, not live.
• uses: steps after a split run once, outside the shards.
• Capacity: a small pool of bare-metal hosts. Jobs queue when they are busy.
• Job length: at most 3 hours.