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PD#SWPL-179931 Problem: System performance is not good. we saw dm create too much mempool. Solution: reduce the default pool size, we tested: Before: ============================================================================= Test Time Assistant Katniss Assistant Killed Pass/ Name Started Latency Latency Other Fail ============================================================================= cuj-0MB 0.36 yes: 9.90s 0.78s 9.13s yes pass: 100% cuj-100MB 0.39 yes: 9.73s 0.95s 8.79s yes pass: 100% cuj-200MB 0.48 yes: 11.06s 1.63s 9.43s yes pass: 80% cuj-250MB 0.55 yes: 12.57s 3.07s 9.50s yes pass: 80% cuj-275MB 0.47 yes: 15.60s 6.13s 9.47s yes pass: 60% cuj-276MB 0.52 yes: 13.30s 3.69s 9.61s yes pass: 80% cuj-278MB 0.93 yes: 16.03s 6.25s 9.79s yes fail: 14% cuj-280MB 0.72 yes: 16.22s 6.58s 9.63s yes fail: 14% cuj-287MB 0.71 yes: 19.69s 9.26s 10.43s yes fail: 0% cuj-300MB 0.63 yes: 16.85s 7.14s 9.71s yes fail: 14% ----------------------------------------------------------------------------- After: ============================================================================= Test Time Assistant Katniss Assistant Killed Pass/ Name Started Latency Latency Other Fail ============================================================================= cuj-0MB 0.37 yes: 10.44s 0.73s 9.72s yes pass: 100% cuj-100MB 0.36 yes: 10.12s 0.74s 9.38s yes pass: 100% cuj-200MB 0.42 yes: 10.60s 1.29s 9.30s yes pass: 100% cuj-250MB 0.47 yes: 12.99s 2.21s 10.78s yes pass: 100% cuj-275MB 0.49 yes: 13.32s 3.37s 9.95s yes pass: 80% cuj-287MB 0.53 yes: 13.10s 3.62s 9.48s yes pass: 60% cuj-289MB 0.53 yes: 13.62s 3.97s 9.65s yes pass: 80% cuj-291MB 0.52 yes: 14.48s 4.72s 9.77s yes pass: 50% cuj-293MB 0.53 yes: 16.11s 5.98s 10.13s yes fail: 33% cuj-300MB 0.54 yes: 16.18s 6.02s 10.16s yes fail: 14% ----------------------------------------------------------------------------- Verify: Locally Signed-off-by: shuide chen <shuide.chen@amlogic.com> Change-Id: I568de7a16c5333053f03cd43cd4860bf386fe1f7