release-26.3: roachtest: perturbation/full/elasticWorkload failed

roachtest.perturbation/full/elasticWorkload [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyGcePrivateBazel/21478372?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyGcePrivateBazel/21478372?buildTab=artifacts#/perturbation/full/elasticWorkload) on release-26.3 @ [64254aa52b8a6efbf5934ddf3674eabd1e8d9776](https://github.com/cockroachdb/cockroach/commits/64254aa52b8a6efbf5934ddf3674eabd1e8d9776):

Failed with:

```
(assertions.go:387).Fail:
Error Trace: pkg/cmd/roachtest/tests/perturbation/framework.go:1051
pkg/cmd/roachtest/test_runner.go:1558
src/runtime/asm_amd64.s:1771
Error: FAILURE: follower-read : throughput ratio 1.34x exceeds limit 1.2x (baseline: 10423 ops/s, measured: 7780 ops/s)
FAILURE: read : throughput ratio 1.32x exceeds limit 1.2x (baseline: 10365 ops/s, measured: 7843 ops/s)
FAILURE: write : throughput ratio 1.34x exceeds limit 1.2x (baseline: 20924 ops/s, measured: 15645 ops/s)
Test: perturbation/full/elasticWorkload
(require.go:522).Fail: FailNow called
test artifacts and logs in: /artifacts/perturbation/full/elasticWorkload/run_1
```
Cluster Node to Ip Mapping:
| Node | Public IP | Private IP |
| --- | --- | --- |
| teamcity-21478372-1787378152-200-n13cpu16sm-0001 | | 10.91.97.52 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0002 | | 10.91.97.110 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0003 | | 10.91.97.49 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0004 | | 10.91.97.104 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0005 | | 10.91.96.107 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0006 | | 10.91.97.108 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0007 | | 10.91.97.58 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0008 | | 10.91.97.90 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0009 | | 10.91.97.55 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0010 | | 10.91.97.56 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0011 | | 10.91.96.20 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0012 | | 10.91.96.85 |
| teamcity-21478372-1787378152-200-n13cpu16sm-0013 | | 10.91.96.61 |

Parameters:
- acMode=defaultOption
- arch=amd64
- blockSize=4096
- cloud=gce
- coverageBuild=false
- cpu=16
- diskBandwidthLimit=0
- diskCount=2
- disks=2
- encrypted=false
- fillDuration=10m0s
- fs=ext4
- leaseType=leader
- localSSD=true
- mem=standard
- numNodes=12
- numWorkloadNodes=1
- perturbationDuration=10m0s
- ratioOfMax=0.5
- runtimeAssertionsBuild=false
- seed=0
- splits=10000
- validationDuration=5m0s
- vcpu=16
Help

See: [roachtest README](https://github.com/cockroachdb/cockroach/blob/master/pkg/cmd/roachtest/README.md)

See: [How To Investigate \(internal\)](https://cockroachlabs.atlassian.net/l/c/SSSBr8c7)

See: [Grafana](https://go.crdb.dev/roachtest-grafana/teamcity-21478372/perturbation-full-elasticworkload/1787415428011/1787417885309)

See: [Datadog Logs](https://us5.datadoghq.com/logs?query=service%3Aroachtest+%40cluster%3Ateamcity-21478372-1787378152-200-n13cpu16sm&from_ts=1787415428011&to_ts=1787417885309&live=false&storage=flex_tier)

Same failure on other branches

- #172678 roachtest: perturbation/full/elasticWorkload failed [A-testing C-bug C-test-failure O-roachtest O-robot P-3 T-kv branch-master]

/cc @cockroachlabs/kv-triage

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*perturbation/full/elasticWorkload.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Jira issue: CRDB-67049