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Comparison · DevOps

Prometheus vs ps

A side-by-side editorial comparison of Prometheus and ps — release velocity, themes, recent moves, and the top alternatives to consider.

Prometheus vs ps: at a glance

FeaturePrometheusps
SectorDevOpsDevOps
Velocity score5.00.0
Sparks · 30d00
Top themesmonitoring, promql, tsdb, service-discoveryprocesses, r-lib, processx, cross-platform
Last editorial update19h ago5d ago
WebsiteVisit →Visit →

What is Prometheus?

Prometheus 3.14 ships the release candidate unchanged, duration expressions now on by default

3.14.0 is byte-identical to the 3.14.0-rc.0 body published a week earlier, so the stable cut carries exactly what the candidate previewed: PromQL duration expressions enabled by default with the feature flag retired, first_over_time promoted to stable, Oracle Cloud service discovery added, and a set of start-timestamp experiments still behind flags. The performance work is the substantive half, with regex matchers on literal alternations, native histogram scrape parsing down roughly 49% in allocations, and a recursion-free text parser that closes a stack-overflow path on hostile exposition.

Read the full Prometheus trajectory →

What is ps?

ps grew from a process inspector into the thing that reliably kills what you started.

ps is the cross-platform process API underneath processx and callr, and its recent work splits between widening what it can query and hardening the guarantee that a handle still refers to the process you think it does. Version 1.8.0 added interruptible multi-process waiting, vectorised signalling, and graceful kill with a TERM-then-KILL grace period. Version 1.9.3 rebuilt Linux process creation times on a clock pair instead of integer-second boot time, closing a window where two processes could look identical.

Read the full ps trajectory →

Prometheus vs ps: editorial side-by-side

Prometheus logo5.0

Prometheus 3.14 ships the release candidate unchanged, duration expressions now on by default

◆ Current state

3.14.0 is byte-identical to the 3.14.0-rc.0 body published a week earlier, so the stable cut carries exactly what the candidate previewed: PromQL duration expressions enabled by default with the feature flag retired, first_over_time promoted to stable, Oracle Cloud service discovery added, and a set of start-timestamp experiments still behind flags. The performance work is the substantive half, with regex matchers on literal alternations, native histogram scrape parsing down roughly 49% in allocations, and a recursion-free text parser that closes a stack-overflow path on hostile exposition.

◆ Where it's heading

The project is spending its feature budget on start timestamps, appearing across PromQL, TSDB encoding, and remote write V2 in the same release but held behind use-start-timestamps and histograms-st-encoding. Everything else follows the established rhythm of promoting one experimental function per cycle and adding a cloud discovery source. The API deprecations are being staged carefully, warning now and rejecting at the next major.

◆ Prediction

Start timestamps are the obvious candidate to lose their feature flags once the encoding and remote-write halves have run together, and the stats parameter values now warned on will be rejected in the next major.

P
ps
DEVOPS
0.0

ps grew from a process inspector into the thing that reliably kills what you started.

◆ Current state

ps is the cross-platform process API underneath processx and callr, and its recent work splits between widening what it can query and hardening the guarantee that a handle still refers to the process you think it does. Version 1.8.0 added interruptible multi-process waiting, vectorised signalling, and graceful kill with a TERM-then-KILL grace period. Version 1.9.3 rebuilt Linux process creation times on a clock pair instead of integer-second boot time, closing a window where two processes could look identical.

◆ Where it's heading

The direction is from observation to control. Early releases in view are per-process queries — CPU times, memory, affinity — and the newer ones are orchestration: wait on many processes with a timeout, signal a list of handles at once, terminate a tree politely before forcing it. The create-time precision work is what makes that safe, since a handle's identity is a PID plus a start time, and a one-second resolution start time is not enough to rule out PID reuse on a busy machine.

◆ Prediction

Expect the remaining platform-specific gaps in ps_status() and ps_apps() to close before any new capability area opens, since the recent additions have all been driven by processx issue reports.

Alternatives to Prometheus and ps

Other DevOps products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Prometheus or ps.

See all Prometheus alternatives → · See all ps alternatives →

Recent activity from Prometheus and ps

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoPrometheusPrometheus 3.14: duration expressions on by default, OCI discovery, faster histogram parsing
  2. 8d agoPrometheus3.14 release candidate: duration expressions on by default, first_over_time stable
  3. 19d agoPrometheus3.13.2: CVE dependency bumps and a SIGBUS fix on full disks
  4. 1mo agoPrometheus3.13.1 LTS: head-chunk cache returned samples from the wrong chunk
  5. 1mo agoPrometheus3.5.5: sanitize-html bump for CVE-2026-53606
  6. 1mo agoPrometheus3.13.0-rc.0: release candidate for the 3.13 LTS
  7. 4mo agopsSub-second process create times on Linux
  8. 4mo agopsps_string() for unique process identification
  9. 1y agopsBuild correctly on Alpine Linux
  10. 1y agopsmaxrss reporting and selectable columns in ps()
  11. 1y agopsInstallable again on unsupported platforms
  12. 1y agopsMulti-process waiting, vectorised signals and graceful kill

Frequently asked questions

What is the difference between Prometheus and ps?

They serve adjacent needs but don't currently overlap on shipped themes. Prometheus is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Prometheus better than ps?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Prometheus is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.

What are the best alternatives to Prometheus?

Top Prometheus alternatives in DevOps are ranked by recent ship velocity. Browse the "Prometheus alternatives" section above for the current picks, or visit /alternatives/prometheus for the full list with editorial commentary on each.

What are the best alternatives to ps?

Top ps alternatives in DevOps are ranked by recent ship velocity. Browse the "ps alternatives" section above for the current picks, or visit /alternatives/ps-r for the full list with editorial commentary on each.