65 lines
1.9 KiB
JavaScript
65 lines
1.9 KiB
JavaScript
import { check, randomSeed } from 'k6';
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import http from 'k6/http';
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import { Trend, Counter } from 'k6/metrics';
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import { randomItem } from 'https://jslib.k6.io/k6-utils/1.2.0/index.js';
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const seed = 0;
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const host = __ENV.HOST || '127.0.0.1:8000';
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const timePerToken = new Trend('time_per_token', true);
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const throughput = new Counter('tokens_per_s');
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randomSeed(seed);
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// const shareGPT = JSON.parse(open("ShareGPT_V3_unfiltered_cleaned_split.json"))
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const shareGPT = JSON.parse(open("small.json"))
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export function get_options(reference_latency_ms){
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return {
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thresholds: {
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http_req_failed: ['rate==0'],
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time_per_token: [{
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threshold: `p(50)<${3 * reference_latency_ms}`,
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abortOnFail: true,
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delayAbortEval: '10s'
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}],
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},
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scenarios: {
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load_test: {
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executor: 'constant-arrival-rate',
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duration: '60s',
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preAllocatedVUs: 100,
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rate: 10,
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timeUnit: '1s',
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},
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},
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};
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}
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export function run(host, generate_payload, max_new_tokens) {
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const headers = {'Content-Type': 'application/json'};
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const query = randomItem(shareGPT);
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const payload = JSON.stringify(generate_payload(query));
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const res = http.post(`http://${host}/generate`, payload, {
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headers,
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});
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if(res.status >= 400 && res.status < 500){
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return;
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}
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check(res, {
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'Post status is 200': (r) => res.status === 200,
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});
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const n_tokens = max_new_tokens;
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const timings = res.timings.duration;
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if (res.status === 200) {
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const latency_ms_per_token = timings / n_tokens;
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timePerToken.add(latency_ms_per_token);
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const latency_in_s = latency_ms_per_token / 1000;
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const individual_throughput = 1 / latency_in_s;
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throughput.add(individual_throughput);
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}
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}
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