public double getCacheHitRatio() {
        long hits = cacheHits.get();
        long misses = cacheMisses.get();
        long total = hits + misses;
        
        if (total == 0) return 0.0;
        return (double) hits / total;
    }
    
    public void recordCacheHit() { cacheHits.incrementAndGet(); }
    public void recordCacheMiss() { cacheMisses.incrementAndGet(); }

        operationErrors.incrementAndGet();
    }
    
    public double getErrorRate() {
        long total = rdmaReads.get() + rdmaWrites.get() + rdmaSends.get() + rdmaReceives.get();
        if (total == 0) return 0.0;
        return (double) operationErrors.get() / total;
    }
    
    // Getters for all statistics...
}
```

## 9. Error Handling and Fallback

### 9.1 RDMA Error Recovery
```java

		}
		p[i] = endpoints
	}

	return nil
}

func isEmptyLayout(poolsLayout ...poolDisksLayout) bool {
	return len(poolsLayout) == 0 || len(poolsLayout[0].layout) == 0 || len(poolsLayout[0].layout[0]) == 0 || len(poolsLayout[0].layout[0][0]) == 0
}

func isSingleDriveLayout(poolsLayout ...poolDisksLayout) bool {
	return len(poolsLayout) == 1 && len(poolsLayout[0].layout) == 1 && len(poolsLayout[0].layout[0]) == 1
}

		{-1, 0, -1, nil},
		// Max fffset is always (size - 1).
		{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte) - 1, 4, 1048582, nil},
		// Error if offset is size.
		{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte), 0, 0, InvalidRange{}},
	}

	// Test them.
	for _, testCase := range testCases {
		index, offset, err := fi.ObjectToPartOffset(t.Context(), testCase.offset)
		if err != testCase.expectedErr {

	default:
		return "(" + strings.Join(ss, " | ") + ")"
	}
}

// Magics used to identify various formats.
const (
	magicGNU, versionGNU     = "ustar ", " \x00"
	magicUSTAR, versionUSTAR = "ustar\x00", "00"
	trailerSTAR              = "tar\x00"
)

// Size constants from various tar specifications.
const (
	blockSize  = 512 // Size of each block in a tar stream

     * crc1 = int1
     * crc2 = int2
     * crc3 = int3
     *
     * ...so we set crc0 so that computeForWord(crc0) = -1 and xoring it with the first int
     * gives us the desired result.  computeForWord(0) == 0, so all the others do the right thing.
     */
    private int crc0 = INVERSE_COMPUTE_FOR_WORD_OF_ALL_1S;
    private int crc1 = 0;
    private int crc2 = 0;
    private int crc3 = 0;

    @Override

			if e.ObjSizes != w.oSizes {
				t.Error("got histogram", e.ObjSizes, "want", w.oSizes)
			}
		})
	}
}

func TestDataUsageUpdatePrefix(t *testing.T) {
	base := t.TempDir()
	scannerSleeper.Update(0, 0)
	files := []usageTestFile{
		{name: "bucket/rootfile", size: 10000},
		{name: "bucket/rootfile2", size: 10000},
		{name: "bucket/dir1/d1file", size: 2000},
		{name: "bucket/dir2/d2file", size: 300},

                final SmbComWriteResponse rsp = new SmbComWriteResponse(th.getConfig());
                th.send(new SmbComWrite(th.getConfig(), fh.getFid(), (int) (newLength & 0xFFFFFFFFL), 0, this.tmp, 0, 0), rsp,
                        RequestParam.NO_RETRY);
            }
        } catch (final CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

    @Override

	MOVHU.S	R9, R2<<0(R4)      // ERROR "invalid .S suffix"
	STREX.S R0, (R1), R2       // ERROR "invalid .S suffix"
	LDREX.S	(R2), R8           // ERROR "invalid .S suffix"
	MOVF.S	$0.0, F3           // ERROR "invalid .S suffix"
	CMPF.S	F1, F2             // ERROR "invalid .S suffix"
	MOVFW.S	F0, F9             // ERROR "invalid .S suffix"
	MOVWF.W	F3, F1             // ERROR "invalid .W suffix"

        settings.elevateWord().add(normalized);
        if (apply) {
            return index(normalized.toSuggestItem());
        }
        return new SuggestIndexResponse(0, 0, null, 0);
    }

    /**
     * Deletes an elevate word.
     * @param elevateWord The elevate word to delete.
     * @param apply Whether to apply the change immediately.